I'm charging you with cleaning the room before you go.

我要你负责把房干净再走。

You did a beautiful job of cleaning up the kitchen.

你把厨房得真干净。

The rooms were cleaned and wallpapered.

房干净并糊上了壁纸。

The city has made a concerted effort to curb pollution, clean up and pedestrianize the streets, spiff up the museums, build a new airport and invest in one of Europe's better public-transit systems.

城市已经一致努力去抑制污染，街道被干净，划分了行人区，整洁了博物馆，建设了一个新的机场及投资建设欧洲其中一个较好的公共交通系统。