Elastose
[医] 弹性蛋白
🗣️ 情景例句
Now let's discuss the freight and packing.
现在让我们来讨论一下货运与包装问题。
Would you like a cigarette?
你要不要吸烟？
Mary is still writing letters. She's been writing letters all day.
马力还在写信，她写了一整天的信。