Pericyclo-compound
[化] 架环化合物
🧩 词语组成解析
🗣️ 情景例句
Thanks, John. You really go out of the way to make me feel welcome. Thanks you very much.
约翰，谢谢你。你真是煞费心思来让我感受到欢迎。谢谢你！
Leaves are falling.
叶子落了。
No, I don't think we have.
我想没有。