HSK 7-9
牵制
qiānzhì动
to control; to curb; to restrict; to impede
敌军主力被牢牢牵制。
Díjūn zhǔlì bèi láoláo qiānzhì.
The main enemy force was firmly pinned down.
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Appears across levels (7-9) in the HSK 3.0 word list.