Chonchiolin
[化] 贝壳硬蛋白
🗣️ 情景例句
Thank you,
谢谢你。
On the way back home,we had a flat tire.
在途中回家,我们有一个轮胎破了。
However, rescue operations are proving difficult.
然而，事实证明营救工作非常困难。