1. survive vi.幸存，活下来
例句：Those organisms that are most suited to the environment will be those that will survive
最适宜该环境的微生物将会存活下来。

2. competition n.竞争; 比赛; 竞争者
例句：There's been some fierce competition for the title
夺冠之争一直都相当激烈。

3. electrical adj.用电的，与电有关的，电学的
例句：He is an electrical engineer.
他是个电气工程师。

4. decide vt. 决定; 决心; 解决
例句：She decided to do a secretarial course
她决定修一门文秘课程。


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