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
Remember Lillian?
还记得Lillian吗
However.
无论怎么理。
'Would you mind my coming with you?' he asked, before I had finished speaking.
“我跟你一道去行吗？”没等我说完话他就问道。