strong的对应词或反义词

weak，意思是虚弱的，弱小的，例如：

1.He became very weak towards the end of his life.他临终时很虚弱。

2.He was a weak little mouse of a man.他是个懦弱无能的人。

3.I was always weak in the science subjects.我总是学不好理科。

4.He heard my weak voice and worried me too much.他听到我虚弱的声音而且非常的担心我。