平台上的警卫吹响了哨子.On the platform, the guard blew his whistle.裁判吹响哨子，比赛才算结束。The game's not over till the ref blows the whistle.裁判在比赛结束时吹响了哨子.The referee blew a whistle at the end of the game....
Millions of words have been written about the introduction of the euro.有关采用欧元的文章已经有很多。On balance, the book is a friendly, down-to-earth introduction to physics.总而言之，这是一本通俗而务实的物理入门书。The camera has undergone only two minor...