This is a Geiger counter for detecting radioactivity.这是一种盖革计数管,用来测量辐射的.A metal called uranium gave off a kind of radiation, which Marie Curie later called radioactivity.一种叫铀的金属发出一种射线, 后来玛丽·居里把这种现象称为放射性.The site was found...
The Government could expect only ingratitude from the electorate.政府从选民那里得到的只有忘恩负义。I expect something to come up soon.我预料很快就要出事的。You can't really expect me to believe you didn't know him.你不会真的觉得我会相信你不认识他吧。I expe...