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It's important to tighten up the wheels properly, otherwise they vibrate loose and fall off.
把车轮拧紧很重要，否则它们会振动而松脱。
《柯林斯英汉双解大词典》
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It's important to tighten up the wheels properly, otherwise they vibrate loose and fall off.
把车轮拧紧很重要，否则它们会振动而松脱。
《柯林斯英汉双解大词典》