苦

The fruit tastes very bitter.

bitter taste

taste a bit bitter

hard life

feel it an honour and a joy to work hard

pour out one's grievances; air one's sufferings

suffer from poverty

suffer bitter privation

fear hardship

bear hardship

She never knew anything but hardship in her whole life.

This really gave him a hard time.

be afflicted with rheumatism

suffer from incessant rain

be hard pressed for time

be handicapped by illiteracy

suffer from drought

Your mother was knocking herself out looking for you.

earnestly advise/exhort

try hard to ask sb to stay

do one's utmost to advise or exhort (the monarch)

study hard

This worn-out pair of shoes is beyond repair.

The trees are over-pruned.

trim one's nails too short