This is the 8000th most frequent Chinese word.
at
The Chinese word "at" does not exist; "at" in English is often translated to 在 (zài) in Chinese, meaning "to be present at" or "in/at a location."
To indicate the location where an action occurs.
我正在图书馆学习。
I am studying at the library.
Used to specify the place of an upcoming event.
她明天会在公司开会。
She will have a meeting at the company tomorrow.
Used to describe the position or location of an object or subject.