例句：
The booklet should be very helpful to parents of disabled children.
這本小冊(cè)子對(duì)于殘疾兒童的.父母會(huì)很有用。
Role-play is helpful in developing communication skills.
角色扮演有助于提高溝通技巧。
Sorry I can't be more helpful.
對(duì)不起，我?guī)筒簧细嗟?#39;忙。
You'll find her very helpful ─ if she's not too busy, that is.
你會(huì)覺(jué)得她很肯幫忙，那是說(shuō)如果她不太忙的話(huà)。
She was very helpful when my mother was ill ─ I'll allow you that.
我母親生病時(shí)她幫了很大的忙——我同意你說(shuō)的這一點(diǎn)。