After the disinfectant is introduced, the surface of the liquid scummed.

导入消毒剂后，液体表面形成了浮沫。

The gray substance floating in the pan was blood scum from the meat.

漂浮在锅里的灰色物质是肉产生的血沫。

This man who betrayed his friends and family was a complete scum.

这个背叛朋友和家庭的男人就是一个十足的人渣。

Don't waste your sympathy on scum like that.

对这样的人渣你没必要同情

Those scammers are the scum of the earth. Preying on the most vulnerable like that!

那帮骗子都是一群败类。专挑最易受害的人群下手！

Someone had scrawled "Scum" on his car.

有人已在他的车上涂写了“人渣”字样。

Skim the scum off the jam and let it cool.

撇去果酱上的浮沫，让它冷却。

She never would have even spoken to scum like him when Mom was alive.

妈妈活着的时候她是绝不会和像他这样令人厌恶的人说话的。

I detect the presence of scum.

我监测到有人渣的存在。

If it's really cool we say, uh, scum.

如果确实是酷，我们得说，嗨，就是贱。