HSK GuideHSK by Foorsa

调研調研 diào yán — to investigate and research

diào yándiao4 yan2

繁体: 調研

to investigate and research

尚未翻译成你的界面语言，此处以英文显示。

六级· 2021 年“三等九级”国际中文水平标准verb

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义项

to investigate and research
to investigate and research; research; investigation
verb