to become dry, smaller, and covered with lines as if by crushing or folding, or to make something do this

The lack of rain has shrivelled the crops. 雨水不足，庄稼枯萎了。

You ought to pick that lettuce before it shrivels (up) and dies. 你应该在那些生菜枯死之前收割。

to become much smaller than is needed or wanted

Profits are shrivelling as the recession gets worse. 随着经济衰退的加剧，利润不断萎缩。