1. appeal　vi.（迫切） 要求; 有吸引力
例句：He also sought to appeal to a Jewish constituency for his Presidential ambitions.
为了实现他当总统的野心，他还竭力吁请一个犹太人选区的帮助。

2. achieve　vt.实现; 取得; 获得
例句：He stretched himself to achieve better results in his work.
他尽心竭力,以求工作更有成效。

3. switch vt.转换; 转变，改变
例句：Please switch the radio back to the other program.
请把收音机调回到另外那个节目。

4. observe　vt.观察; 研究
例句：All the football match spectators were able to observe orders in the stadium.
球赛观众都能遵守会场秩序。

5. submit vi.顺从，服从; 甘受
例句：I did not submit to having my freedom limited.
我不甘于我的自由受到限制。
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