位安全带;Standing up,he unbuckled his belt,and spread it laden across his waist.
他站了起来,
腰带,带子的一头垂到腰部以下。
扣子Standing up,he unbuckled his belt,and spread it laden across his waist.
他站了起来,腰带,带子的一头垂到腰部以下。
Unbuckle your pack's waistbelt before starting.
涉水前要你的背包腰带。
声明：以上例句、词性
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