1) His geography is poor.
他地理学得不好。
2) He is good at the Geography.
他地理学得很好。
3) He does not know chalk from cheese.
他不懂得好歹。
4) He is a poor hand at writing.
他的字写得不好。
5) He complained about the food.
他抱怨吃得不好。
6) His mathematics are weak, ie He is not very good at doing calculations, etc.
他数学不好.
参考词条