Arsonation
引入胂羧基
🗣️ 情景例句
Keeping busy. Yourself?
一直很忙，你呢？
The distinction of our product is its light weight.
我们产品的特点就是它很轻。
Later we learnt that there was a very important person on board.
后来我们才得知，飞机上坐了一位非常重要的人物。