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重点讲解：
1. carry out 实施；执行；实行；
He pledged that there would be no whitewash and that the police would carry out a full investigation.
他保证将不会有任何掩饰，并且警方将进行全面调查。
2. take care of 照顾；照看；看护；
You have to learn to take care of your possessions.
你得学会保管好自己的财物。
3. date back to 追溯（到）；开始（于）；始造（或建）（于）；
The college dates back to medieval times.
这所学院创办于中世纪。
4. instead of 代替…；而不是…；
Instead of rushing at life, I wanted something more meaningful.
我不想混日子，我想做点更有意义的事情。
