Tomac
顿巴黄铜(铜锌合金)
🗣️ 情景例句
He started out as a salesman.
他开始时当推销员。
Truth lies at the bottom of a well.
事实真相往往不在表面，而在深层。
They also have the disadvantage of being an expensive form of transport.
飞机另一个缺点是昂贵。