Double as 兼做（职场中一个人兼做两个职务空间或东西兼做其他用途都可以使用。）

Because we are understaffed, I have to a double as receptionist and file clerk right now. 因为能力不足，我现在必须先做接待员和档案管理员。

The chairman will have to double as CEO until we find a new one. 在我们找到人之前，董事长必须兼任执行长。

This table doubles as a desk during busy times. 忙碌时餐桌也可以兼做办公桌用。