HSK 7-9
签署
qiānshǔ动
to sign (an agreement)
双方昨日签署合作协议。
Shuāngfāng zuórì qiānshǔ hézuò xiéyì.
The two sides signed a cooperation agreement yesterday.
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Appears across levels (7-9) in the HSK 3.0 word list.