It's important to put a lock washer on that last nut, or it can work loose.

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。

《柯林斯英汉双解大词典》

Mary Cassatt's loose brush work skillfully captures the effect of the sunlight in the room.

VOA: special.2009.07.12

"It is going to require more work, but I think that we can get something accomplished there and we can lock down loose nuclear weapons that could fall into the hands of terrorists."

VOA: standard.2009.05.19

Their confidence can also suffer because of frequent false alarms that are triggered when the straps work loose and the sensors break their contacts.

BBC: News | Sci/Tech | Smart baby suit checks for cot death

They could also think that as a result I'm not so interesting and that my work is where I let loose.

WSJ: Cindy Sherman

The lesson of not giving this All Blacks side any loose ball to work with was hammered home once again in the 22nd minute, as they claimed a second try.

BBC: Wales 25-37 New Zealand