HSK 7-9
充
chōng动
sufficient; full; to fill; to serve as; to act as; to act falsely as; to pose as
这间小屋充作临时仓库。
Zhè jiān xiǎo wū chōng zuò lín shí cāng kù.
This small room serves as a temporary warehouse.
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Appears across levels (7-9) in the HSK 3.0 word list.