One of the screws on his project keeps coming loose.

他那装置上个螺钉总拧不紧。

This time it was a tentative pull, not solid nor heavy, and he knew exactly what it was.

这回试探性，得既不紧又不重，他就完全明白这怎么回事了。

The collar is the right size, not too loose or tight.

领子大小正好，不紧不松。

No, they're not even. Make them even.

还不够紧，点不紧。

15. It's neither too tight nor too loose. It fits perfectly!

不紧也不松。正合适！【拓展】1. 痱子：heat rash2. Trash and garbage ： 美式英语垃圾 (可替换使用)3. 透气尿不湿：breathable diaper4. 舒适裤腰：comfortable waistband5. 这个尿不湿吸水性极。This diaper can hold a lot of pee。6. Pull-ups 数，裤有 2 条腿所以要加 s，代词要用 They 和 them，或者可以说 pull-up diaper，单数就好啦。7. Rip=tear. 表示撕开，可以互换使用。但 rip 语气更加烈。

You let your end down, there will be consequences.

嘴巴不紧 吃不了兜着走。

It's near but not close to the window.

它在靠近但不紧挨着窗户位置。

No; the strip was too wide; it would not tie firmly; and there must be a noose.

不行；这条布太宽了；它绑不紧；而且必须得有个活套。

" Did you lose your cellphone? " " Loose" is an adjective which means not tight, and " lose" is the opposite of " find" .

“你丢手机了吗？” “Loose”形容词，意思不紧，而“lose”“find”反义词。