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 told me he was very impressed with you.
他告诉我他对你印象很好。
A change of work is as good as a rest.
调换一下工作是很好的休息。
A gifted American psychologist has said,'Worry is a spasm of the emotion;
烦恼是感情的发作，