重要的是要在最后一个螺母上安装一个防松垫圈，否则它会逐渐变松。
It's important to put a lock washer on that last nut, or it can work loose.
《柯林斯英汉双解大词典》
她的衣服变松了，看来是减肥了。
Her dress has become loose, and she appears to have lost weight.
youdao
再过一天这个就会变松脆。
Another day and this one would be crunchy.
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