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
To help scrub the building interior clean.
帮忙把建筑的内部擦洗干 。
I'll work out our schedule.
我将制订出我们的计划。
It has sailed across the Atlantic many times.
它已经多次横渡大西洋。