Hydrofluoric
a. 氢氟酸的
🗣️ 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！
The sky is getting very cloudy.
天空的云越来越多了。
I don't think it will lead to a good result.
我认为这事不会有什么好结果。