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
Yes, of course.
可以，当然可以。
I'm afraid you have the wrong number.
恐怕你打错号码了。
This is by far the largest cake in the world.
这是目前世界上最大的蛋糕了。