Role-play is helpful in developing communication skills.
角色扮演有助于提高溝通技巧。
When you go to concerts, it's helpful to read the programme.
去音樂會的時候，看看節目單是有幫助的。
An A to Z of careers gives helpful information about courses.
一本按字母順序排列的職業手冊，提供了有助于課程選擇的信息。
Having the right equipment at hand will be enormously helpful.
有合適的工具在手邊將會極為有用。