Plastimets
金属塑料复合材料
🗣️ 情景例句
No, I think it's important to do it now.
不 ，我觉得还是应该现在动手术。
How's your uncle?
你的叔叔好吗？
It was my first flight. I was nervous when the plane took off.
我第一次坐飞机，起飞时我有点紧张。