help的形容词怎么写
helpful adj. 有帮助的；有益的；
例句
They had helpfully provided us with instructions on how to find the house.
他们已经热心地给我们提供了如何找到那所房子的说明。
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.
The booklet should be very helpful to parents of disabled children.
这本小册子对于残疾儿童的父母会很有用。