Epichitosamine
氨基甘露糖
🗣️ 情景例句
And good luck! I've got to go.
祝你好运 我得走了。
What is the total circulation of this newspaper.
这家报纸总发行量多少？
We're ready! she said. Where is everyone?
“我们都准备好了！”她说，“人都到哪儿去了？”