unbuckle + object
宾语通常为安全带、皮带等有搭扣的物品。
He unbuckled his seatbelt and got out of the car.
他解开了安全带，下了车。
解开（皮带、鞋子等的）搭扣
解开...的搭扣；解开；解开搭扣
to unfasten the buckle of something, such as a belt or shoe
解开...的搭扣
to unfasten (the buckle of (a belt, shoe, etc))
一般现在时
I unbuckle my seatbelt.
我解开安全带。
一般过去时
Yesterday, he unbuckled his belt.
昨天他解开了腰带。
现在进行时
She is unbuckling her shoes.
她正在解开鞋扣。
规则动词
She unbuckled her seatbelt as soon as the car stopped.
车一停，她就解开了安全带。
用法提示：unbuckled 是过去式，表示解开搭扣的动作。
Please unbuckle your shoes before entering the gym.
进入健身房前请解开鞋扣。
用法提示：unbuckle 是动词原形，用于祈使句，表示解开鞋上的搭扣。
He unbuckles his helmet strap every time he gets off the motorcycle.
他每次下摩托车都会解开头盔带扣。
用法提示：unbuckles 是第三人称单数形式，表示习惯性动作。
宾语通常为安全带、皮带等有搭扣的物品。
He unbuckled his seatbelt and got out of the car.
他解开了安全带，下了车。
主语为搭扣本身或带搭扣的物品，表示自动松开。
The belt unbuckles easily with one hand.
这条腰带一只手就能轻松解开。
grammar · medium
易错句子She unbuckled her necklace.
正确表达She unclasped her necklace.
中文"解开"可用于各种扣子，但英文"unbuckle"特指解开带扣（如腰带、鞋扣），项链扣应用"unclasp"或"unfasten"。
grammar · medium
易错句子He unbuckled his shoelaces.
正确表达He untied his shoelaces.
"unbuckle"只用于扣环或搭扣，鞋带应使用"untie"。
unbuckle特指解开搭扣，而unfasten泛指解开任何固定物（如扣子、拉链、带子等）。
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