Heliox
n. 氦氧混合气(含98%氦和2%氧,供潜水员在深水中维持呼吸用)
🗣️ 情景例句
He was killed on the spot.
他当场被杀。
I need small change.
我需要零钱。
About England? What a good idea! Maybe I could talk about English names.
英国的情况？多好的主意啊！也许我可以谈谈英国人的名字。