a bad hand at

• 不善于； 不熟练

a bad hand at的用法和样例：

例句

1. He is not good at getting his ideas across.
   他不善于让人理解他的想法。
2. Lao Li is not much of a teacher.
   老李不善于教书。

词汇搭配

• a bad hand at 不善于