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重点讲解：
1. take effect 生效；起作用
The traffic laws don't take effect until the end of the year.
交通法要到年底才生效。
2. be able to do sth. 能够做某事
They were able to come and go at will.
他们能够来去自由。
3. labor market 劳动力市场
How many people really suffer as a result of labor market problems?
有多少人真正因为劳务市场问题而遭受不幸呢？
4. intellectual property 知识产权
Legal protection is provided for the owners of intellectual property.
知识产权所有者受到法律保护。
