英和和英

used of persons only

to use something exclusively

Use as is

use one's wits

to use something only for the purpose for which it was intended

to use up something

It is in use.

It's being used

It's engaged

use sparingly

use diligently

exploit as much as possible

to allot something for a purpose

be of use

use to the limit

use a trowel on

to waste

put to use

to use something

to make use of something

use to the utmost

be used by

I have some business to attend to

I have something to do

I am engaged.

having or using only one filament

put to use

I'll try using it.

to be out of use

avail oneself to