regarding or pertaining to a specific subject; related to

the connection or association between people, groups, or things

pertaining to, concerning, or with regard to a specific subject or topic

to pay attention to, follow closely, or show concern for someone or something

to be interrelated, relevant, or pertinent to something

it doesn't matter; it's okay

of extreme importance; pivotal or decisive

to be concerned about; to care about

an administrative office, government agency, organ, or institution

Having no connection, relationship, or relevance to something or someone else.

to switch off; to shut off

to close or shut a physical object such as a door or window, or to exit a computer program

relationship or connection

to close for the day or go out of business permanently

public security bureau

to close a door, window, or similar physical barrier

to show care, solicitude, or concern for someone, especially from a position of seniority or authority

the anatomical connection between bones in the body

to show concern and care for

customs duty or tax imposed by a government on imported or exported goods

of no importance or consequence; trivial; making no difference

relates to or has a significant impact on

customs (border crossing inspection)

a device such as a power switch or gas valve used to control the flow of electricity or fluid

extremely important, vital, or essential to a situation or outcome

Zhongguancun neighborhood of Beijing, containing Peking University, famous for electronics shops and bookstores

to physically pass through a strategic pass, customs checkpoint, or border

to take care of, look after, or keep an eye on someone or something

a strategic pass, barrier, or a significant level or threshold, often a round figure

to turn off a machine, computer, or electronic device

sexual relations or physical sexual contact

A challenging period or a major obstacle that needs to be overcome.

to tackle a key technical, scientific, or research problem

interpersonal relationship

to be deeply concerned or troubled by a situation, often paying close attention to developments

to detain or keep someone in custody or jail

a critical point, stage, or turning point in a process

to check on something or ensure quality standards are met

to relate to, involve, or be about a particular matter or topic

to successfully complete a video game or a specific level, stage, or mission within it

to have a significant connection with or effect on a specific matter

to switch off electric lights

the relationship between parties involving potential gains and losses or vital interests

a critical or key moment, especially one involving a decision or crisis