tightening ['taɪtnɪŋ]

以下由轻松背单词网站提供

附加级

上紧，固定，紧密

Make sure the washer is firmly seated before tightening the pipe. 旋紧水管之前，检查一下洗衣机是否已牢牢地固定在底座上了。
It needs tightening up a little. 它还需要再收紧些。