residue

US /ˈrez.ə.duː/

UK /ˈrez.ə.duː/

残留物, 残余, 余渣

a small amount of something that remains after the main part has gone or been taken or used

•

There was a sticky residue left on the counter after the spill.

溢出后，柜台上留下了黏黏的残留物。

•

The chemical left a white powdery residue.

这种化学物质留下了一种白色粉状残留物。