do duty as中文什么意思

na. 当…用

[网络] 当...用；履行职务；充当

• do duty for:    代...履行职务; 当...用; 当 ...
• when off duty i can do my private work:    不上班的时候我可以做自己的事了
• be on duty:    当班; 执勤; 值班，值日，在上班时

例句与用法

1. the bookcases that do duty as room dividers are bought from the same store .
   作为分隔房间的墙壁用的书柜购自同一商店。
2. the dairy-work lasted only till the milk began to lessen, for she had not met with a second regular engagement as at talbothays, but had done duty as a supernumerary only
   奶牛场里的杂工到奶量减少的时候就不需要了，因为她没有找到和在泰波塞斯奶牛场一样的第二份正式工作，所以她只能做一个编外的临时工。