The window doesn't fasten up.

这窗户关不紧.

《简明英汉词典》

We must fasten up these windows, and leave all as secure as we can behind us.

我们得先把这些窗户关严, 把一切都料理得十分稳妥才走.

辞典例句

Please fasten up this box before you rope it.

请先把箱子钉牢,然后用绳子捆住.

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The sportsman will fasten up his shoes before the race.

运动员在赛跑前要把某事鞋带系紧.

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Fasten ( up ) your coat.

把你的大衣系好.

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Fasten up the buttons, please.

请把钮扣扣好.

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Fasten up your coat first; don't catch cold.

先把你的上衣扣好; 别着凉了.

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Tell him to fasten up the box.

叫他去把箱子钉起来.

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The suit comes up to the torso and is quite difficult to fasten up.

衣服紧贴着身子,很难扣上.

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Let me fasten up the shoelace and walk a few steps to see how it feels.

让我系上鞋带走走,看感觉如何.

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