例句：
He started work as a security guard。
他开始工作时做保安员。
You need to be able to work as part of a team。
你必须能作为团队的.一员去工作。
He had sought work as a cowboy， rounding up cattle。
他曾经找过一份当牛仔的工作，负责看牛不让其失散。
Sheila found some work as a secretary in an insurance company。
希拉在一家保险公司找到了一份做秘书的工作。
His work as a civil servant was a cover for his activities as a spy。
他以公务员的工作作为搞间谍活动的掩护。