The looseness of the skin can make a person look years older than they really are.

皮肤松弛会让人看起来比实际年龄老好几岁。

The looseness of machine parts may cause serious accidents.

机器配件的松动可能会造成严重的事故。

The screw on the wall has looseness, can you tighten it up a bit?

墙上的螺丝有些松动了，你能把它拧紧一点吗？

But the main area of looseness is my hip girdle.

但松的主要领域是我的臀部腰带。

Check for looseness in front and headset bearings.

检查松动在前面的耳机轴承。

Such looseness throws discredit on the whole work.

这样松懈使整体工作受到怀疑。

Prosthetic looseness caused by postoperative infection.

术后感染导致的假体松动。

This "looseness" will give your painting a lot of life.

这种“松散”会使你的作品看上去更有生命力。