dān​dān

merely

单单 (單單) dān​dān
merely adverb
just or simply; used to indicate a limited scope, purpose, or degree

He did this solely to help, with no other intention.

only adverb
exclusively or solely; used to highlight one particular person or thing among others

Everyone arrived on time, except him alone, who was late.

Frequency

Movie subtitles
3.37 per million appears in 2% of films
Written text
4.74 per million

Sources

Definitions
CC-CEDICT