1.He employed himself (in) teaching English.
他从事英语教学工作。

重点词语：employ vt.使用；采用；利用；雇用
商务用语：in one's employ 受…雇用
out of employ 失业

2.There is a special enclosure for you in the envelope.
信中为你寄送了一份特殊附件。

重点词语：enclosure n.附件
商务用语：a business letter with a supplemental enclosure 带有补充附件的商业信函

3.All my efforts ended in failure.
我的一切努力都归于失败。

重点词语：end n.尽头；结束；限度 vi.&vt.结束，终止；终结
商务用语：make two ends meet 使收支相抵
on one's beam ends 经济窘迫

4.He earned enormous sums of money and was paid as much as 100 pounds for a single appearance.
他挣钱极多，一次出场就付给他一百英镑之多。

重点词语：enormous adj.巨大的，庞大的
商务用语：enormous profits 巨大的利益
an enormous sum of money 巨额资金

5.We thank you for your enquiry for carpets.
谢谢你对地毯的询价。
重点词语：enquiry n.询盘，要货
商务用语：enquiry agent 征询机构
enquiry list 询价单