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重点讲解：
1. carry out 实施；执行；实行；
She needed a clear head to carry out her instructions.
她需要一个头脑清醒的人来执行自己的指令。
2. in the open 公开的；众人皆知的；
The medical service had advised us to keep it a secret, but we wanted it in the open.
这家医疗机构建议我们保密，而我们却想公开此事。
3. attempt to do sth. 尝试，试图（尤指做困难的事）；
He had attempted to rescue the drowning man.
他曾试图去救那个溺水的男人。
4. make sure 一定要；设法保证；
We make sure our clients get the best that money can buy.
我们确保客户买到最好的产品。
