Role-play is helpful in developing communication skills.
角色扮演有助于提高沟通技巧。
When you go to concerts, it's helpful to read the programme.
去音乐会的.时候，看看节目单是有帮助的。
An A to Z of careers gives helpful information about courses.
一本按字母顺序排列的职业手册，提供了有助于课程选择的信息。
Having the right equipment at hand will be enormously helpful.
有合适的工具在手边将会极为有用。