The ship was helpless against the power of the storm.

　　那艘船只能任憑強大的暴風雨肆虐。

　　It's natural to feel helpless against such abuse.

　　對這種虐待感到無能為力是自然的。

　　He lay helpless on the floor.

　　他無助地躺在地板上。

　　The people I spoke to were very helpful.

　　我交談過的人都很肯幫忙。

　　The booklet should be very helpful to parents of disabled children.

　　這本小冊子對于殘疾兒童的父母會很有用。

　　Role-play is helpful in developing communication skills.

　　角色扮演有助于提高溝通技巧。