unclasp + noun
及物用法，宾语常为饰品、扣子等。
She unclasped her necklace.
她解开了项链的扣子。
解开…的扣子；解开…的钩子
放开；松开；打开；松开扣子或握住的东西；解开(某物)。；放松或松开抓握；解开...的扣子
release from a clasp; unfasten the clasp of
松开扣子或握住的东西
To release the clasp or grip of something.
解开(某物)。
To unfasten something.
放松或松开抓握
To release or relax the grasp.
一般现在时
She unclasps the necklace.
她解开项链的扣子。
一般过去时
He unclasped his hands.
他松开了双手。
现在进行时
They are unclasping the brooch.
他们正在解开胸针。
现在完成时
I have unclasped the bracelet.
我已经解开了手镯。
动词规则变化
She unclasped her pearl necklace and put it in the jewelry box.
她解开珍珠项链的扣子，把它放进首饰盒里。
用法提示：unclasped 是及物动词 unclasp 的过去式，表示“解开…的扣子”。
Could you unclasp this bracelet for me? It is stuck.
你能帮我解开这条手镯的扣子吗？它卡住了。
用法提示：unclasp 是动词原形，在 could 后作及物动词，表示“解开…的扣子”。
Every morning she unclasps her handbag and takes out her phone.
每天早上她解开手提包的扣子，拿出手机。
用法提示：unclasps 是 unclasp 的第三人称单数形式，作及物动词，表示“解开…的扣子”。
及物用法，宾语常为饰品、扣子等。
She unclasped her necklace.
她解开了项链的扣子。
不及物用法，主语为扣子、钩子等。
The clasp unclasped unexpectedly.
钩子意外地松开了。
grammar · medium
易错句子Please unclasp the seatbelt.
正确表达Please unfasten the seatbelt.
安全带通常用 buckle（带扣）固定，应用 unfasten 而非 unclasp。unclasp 常指解开钩环或扣钩。
grammar · medium
易错句子She unclasped from the necklace.
正确表达She unclasped the necklace.
unclasp 是及物动词，直接跟宾语，不需要介词 from。
'unclasp' 指解开钩子或扣子，而 'unclip' 特指释放夹子或卡扣
'unclasp' 通常指解开扣钩，'unbuckle' 特指解开皮带扣
'unclasp' 涉及解开物体，'unclench' 则指放松紧握的肌肉
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