be helpful 的用法
的有关信息介绍如下：问题补充说明：Chess players find that playing against a computer is helpful to improve their skills.这句话中 to improve 错在何处?是不是应改为to improving?请详细指教谢
OC上的360问答脑残弱智题=_=，我也副直校革致永南钱装状正纠结着呢~
be helpful 的用法
Simone
发布于 2024-01-29 16:03:15
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