学习资料
[意 思]n. 推进,帮助,促进
[例]  a boost to their morale 对他们士气的激励
n. 一举,一抬,一推
[例]  He gave me a boost over the fence.
他抬我一把助我翻越篱笆。
vt. 举,抬,推
[例]  Boost me into the saddle. 请抬我一把,让我跨上马鞍。
vt. 推动,促进
[例]  boost a program 为一项纲领作宣传
vt. 提高,增加
[例]  The company boosted its sales this year.
这家公司使今年的销售量增加了。