更常用的标准改法为:
= They are used to see in the dark.
它们被用于在暗处观看.
即:be used for doing sth = be used to do sth 被用于做某事
如果对你有所帮助,请点击本页面中的“选为满意回答”按钮,谢谢!
更常用的标准改法为:
= They are used to see in the dark.
它们被用于在暗处观看.
即:be used for doing sth = be used to do sth 被用于做某事
如果对你有所帮助,请点击本页面中的“选为满意回答”按钮,谢谢!