complicated; complex; compound; involving many different parts or factors that are difficult to understand or untangle

to say or do something again; to recur (as of an event or image)

to review or revise what has been learned; to go over lessons in order to strengthen memory and understanding

to make a copy of something by printing, recording, or photographing; to reproduce an original work of art, a document, or an artifact; to clone

to check again; to reexamine; to review

A document or piece of material copied from an original; duplicate

A medical prescription or drug made by combining two or more different ingredients or medicinal formulas.

the state or quality of being complex; complicatedness

To review and verify a result or piece of information; to audit or double-check a calculation or report.

to photocopy or duplicate a document, typically using a machine without making printing plates

round of a competition held between the preliminary rounds and the finals, such as a quarterfinal or semifinal

Having multiple styles, specifications, or forms; compound or multiple. Used in technical contexts like [[复式簿记|複式簿記|fu4 shi4 bu4 ji4]] or [[复式教学|複式教學|fu4 shi4 jiao4 xue2]]

to sit for the second round of a two-stage examination after passing the first round

intricate; tangled and complicated; (idiom) describes a situation where many different factors are intertwined and difficult to untangle

To repeat a recorded phrase or section of audio, commonly using the repeat function on a device for language learning

replica; reproduction; an item made to look exactly like the original

photocopier; duplicating machine (called [[影印机|影印機|ying3 yin4 ji1]] in Taiwan)

to complicate; to make something more complex or to become complicated

numerous and complicated; heavy and repetitive

to review or examine a case or material for a second time; to conduct a re-evaluation

to have a follow-up medical examination; to return to the doctor for further diagnosis or treatment after an initial visit

fertilizer containing two or more primary plant nutrients

To repeat what oneself or someone else has said; to retell a story or a sequence of events.

two or more single lines combined or arranged in parallel

The form of a word used when referring to more than one person or thing; opposite of [[单数|單數|dan1 shu4]].

A duplicate or extra copy of a book, publication, or document.

A method of calculating interest where the interest from the previous period is added to the principal to calculate the interest for the next period.

to plant and harvest crops on the same piece of land two or more times in a single year, or the practice thereof

A voice recording device used as a language learning aid, featuring functions such as synchronous comparison and repeat playback of recorded audio

to make carbon copies or duplicate documents, usually by placing [[复写纸|複寫紙|fu4 xie3 zhi3]] between sheets of paper and writing with a hard-tipped pen

A sentence consisting of two or more independent or related clauses that form a single unit of meaning, such as those connected by logic, time, or cause and effect; a compound or complex sentence.

paper used for photocopying or printing; duplicating paper

A Chinese family name consisting of two or more characters, such as [[司马|司馬|si1 ma3]] or [[欧阳|歐陽|ou1 yang2]]

checkbox; check box

A word composed of two or more distinct roots combined into a single unit; a type of [[合成词|合成詞|he2 cheng2 ci2]]

Work that requires specialized training and a higher level of technical skill, often contrasted with [[简单劳动|簡單勞動|jian3 dan1 lao2 dong4]].

The visual organ of insects, crustaceans, and other arthropods, consisting of many small repeating units; it is used to detect shape, size, color, and movement.

Thin paper coated with wax and pigment used for making one or more copies of a document while writing or typing

hills and mountains rise one after another and the river meanders; describes complex terrain or being faced with many obstacles and difficulties

A public vote or procedure by which citizens express approval or rejection of a law passed by the legislature; one of the four political rights in the Republic of China constitution.

A single leaf whose blade is divided into several distinct leaflets, as seen in the [[掌状复叶|掌狀複葉|zhang3 zhuang4 fu4 ye4]], [[三出复叶|三出複葉|san1 chu1 fu4 ye4]], and [[羽状复叶|羽狀複葉|yu3 zhuang4 fu4 ye4]] types.

The complex stomach of a ruminant animal, such as a cow or sheep, typically composed of four chambers: the rumen, reticulum, omasum, and abomasum.

a sound composed of two or more pure tones of different frequencies, such as those produced by musical instruments

a word composed of two or more syllables

Two or more consonants that occur together within the same syllable; modern Mandarin Chinese does not contain these

A type of compound leaf where leaflets are arranged on both sides of a central axis like the barbs of a feather.

the complex plane in mathematics

A material made from two or more substances with different physical or chemical properties that, when combined, produce a material with improved overall performance; used in aerospace, construction, and electronics

to use something again