Bobby looked at her with a sheepish grin.博比望着她腼腆地咧嘴一笑。Mary gave her a sheepish grin.玛丽难为情地冲她咧嘴一笑。The couple leapt apart when she walked in on them and later came downstairs looking sheepish.她走进屋时撞见这对情侣，搞得两人赶紧分开，后来又面带窘色地走...
Bobby looked at her with a sheepish grin.博比望着她腼腆地咧嘴一笑。The couple leapt apart when she walked in on them and later came downstairs looking sheepish.她走进屋时撞见这对情侣，搞得两人赶紧分开，后来又面带窘色地走下楼来。a sheepish look羞怯的神情Mary gave her a she...
We'll go to a meeting in Birmingham and come straight back.我们将去伯明翰参加会议，然后马上回来。Come along, lad. Time for you to get home.来吧，小伙子。你该回家了。Many of the clothes come from the world's top fashion houses.这些服装中有很多出自世界顶级时装...
您正在收听的是《科学在行动》，由BBC全球广播频道制作播出。You're listening to Science in Action, brought to you by the BBC World Service.你正在收听的内容来自2039航班上的飞行记录器,也就是人们叫做“黑盒子 ” 的那个东西.This is what you'd call the flight recorder of Flight 203...
大气中含有70%以上的氮气.The atmosphere consist of more than 70 % of nitrogen.这只是对威尔逊氮气云室的一种改进.It was an adaptation of Wilson's cloud chamber, filled with nitrogen gas.采气管得用氮气吹扫.Sample gas tubes are flushed with nitrogen....