Front

to feel unwell

Back

be/feel under the weather

Front

not approve of something

Back

frown on/upon sth

Front

makes someone else look foolish

Back

at the expense of sb

Front

to make a great effort to obtain something you want

Back

fight tooth and nail

Front

agree on a certain amount or quantity that is exactly in the middle of the difference between two other amounts

Back

split the difference

Front

to cause

Back

give rise to

Front

go to many different bars and clubs and enjoy oneself

Back

paint the town red

Front

very careful and attentive to detail

Back

meticulous

Front

(especially of a problem or difficulty) too great to be overcome successfully

Back

insurmountable

Front

to fully understand the meaning of something

Back

take in