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1.make a difference 改变
例句：Whatever you can do can make a difference.
无论你能做什么，都会带来不同。
2.encourage to 鼓励
例句：I encouraged her to work hard and to try for the examination.
我鼓励她用功并为这次考试做努力。
3.speak up 大胆说出
例句：Why don't you speak up? I'm your father!
为什么不直接说出来呢?我是你的父亲。
4.be supposed to 应该
例句：What time will we be supposed to arrive there.
我们应该什么时候到达那里。
