Not only did they trade plates but he was generous and he moved her glass out of the way.

他们不仅交换盘子，而且他很慷慨，把她的杯子移开了。

It was a black Armstrong Siddeley Sapphire with red trade plates.

那是一颗黑色的阿姆斯特朗西德利蓝宝石， 带有红色的交易盘。