Melissa laughed unpleasantly.

梅利莎令人不愉快地笑着。

The smell was unpleasantly strong.

气味浓得令人难受。

He laughed unpleasantly.

他笑得令人讨厌。

The drink is very sweet, but not unpleasantly so.

这饮料非常甜，但并不腻。

He licked his lips in an unpleasantly reptilian way.

他令人厌恶地舔着嘴唇。