The conductor blew his whistle, and the tram stopped.售票员吹哨子, 电车停了下来.Freda: What can you see a tram or a double - decker ?弗蕾达: 你可以看到有轨电车或 双层?In 1882, London's first electric tram cars went into service...1882 年，伦敦第一辆...
He showed him how to blow into the ivory mouthpiece.他给他演示如何吹奏象牙吹口乐器。The Ivory Coast became the world's leading cocoa producer.象牙海岸成为世界上可可粉的主要产地。a ban on the ivory trade象牙贸易禁令...