At a dinner he held that December, each engineer presented his own prototype.

在12月的一次晚餐会上，每一个工程师都展示了自己的模型。

youdao

At a dinner he held that December, each engineer presented his own prototype.

在12月的一次晚餐会上，每一个工程师都展示了自己的模型。

youdao