厄介者

Just how well can masks block the, even smaller than pollen, yellow sand dust? I think it much more of a nuisance than pollen

Tracing a renegade's family background, you'll find him the black sheep

The member of the family who is always in trouble is the black sheep

The boy was fed up with being treated as a burden

And she is always a troublemaker

Tim is the black sheep of the Jones' family

There is a black sheep in every flock