1) He is not very good at description
他不善于描写。
2) He is good at describing.
他善于描写。
3) He is poor at spelling.
他不善于拼写。
4) He is good at the three R's.
他善于读、写和算
5) He is clumsy at cricket.
他不善于打板球。
6) His mathematics are [is] not good
他不善于计算。
参考词条