Zipax
薄膜涂敷树脂(二氧化硅球表面涂有一薄层树脂)
🗣️ 情景例句
She'll be back around 2:30.
大概两点半会回来。
Let's talk over dinner.
我们边吃边谈吧。
It is thought that they arrived more than 30,000 years ago by crossing a land bridge from Asia to America.
他们被认为是在3万多年以前从亚洲跨越一座陆桥来到美洲的。