a.

1. 凶猛的；残酷的；好斗的
   My grandfather became fierce when he lost his temper.

   我的祖父发脾气时变得很粗暴。

2. 狂热的；强烈的；极度的
   After he got well Bob made a fierce effort to catch up with his classmates.

   鲍伯痊愈后拼命用功，以期赶上班里的同学。

3. 猛烈的，激烈的
   After a fierce battle the enemy was forced to retreat.

   激战之后，敌人被迫撤退了。

4. 【口】讨厌的；极糟的
   The weather is really fierce.

   天气确实遭透了。

adj.

▸intense:

fierce opposition.