His tie was pulled loose and his collar hung open.

他的领带被扯松了，衣领敞开着。

《柯林斯英汉双解大词典》

In some schools the uniform is so strict that you get a detention if your tie knot is too loose.

有些学校对校服的要求非常严格，如果你的领带结太松，就会被留堂。

youdao

Pick up the running end of the rope (the end that will be loose after you tie the knot).

拿起绳索的活动末端（在完成绳结后，末端将变得松散）。

youdao

He has some loose ends to tie up as OMB Director, and he will obviously make some decisions about how his office is structured going forward.

WHITEHOUSE: Press Briefing

Visits can be used to tie up loose ends or resolve old conflicts, says Brandt.

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Once the major issues of the revenue split, the rookie scale, and the Salary Cap were agreed to and a deal was imminent in late July, there appeared to be a rush to tie up loose ends of the deal so that training camps could open, players could be paid, and games could be played.

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