重点讲解：
1. worry about 担心；忧虑；发愁；
例句：Don't worry about me; I'm very well.
别为我担心，我很好#!z=RgM!zQBeRmT4WG。
2. make sense 可以理解；讲得通；
例句：It all makes sense now.
现在就都讲得通了.EWf5~STY[6o10o5%2。
3. work like a dog 拼命工作；
例句：They say that to be successful, a person has to work like a dog.
他们说，一个人想要成功就得拼命工作rLqStmV8XBY#w6X3-。
4. start over 重新开始；从头再来；
例句：But at this point, it's too late to start over.
但是现在，从头开始已经太晚了xYF)r6Lk6INL。