Dinitrogen monoxide is also known as laughing gas.
一氧化二氮又叫做笑气。
Every time I relayed this story, there will always be some people laughing gas fork.
每次我转述这个故事，总有一些人笑得岔了气。
Using the laughing gas, the people seemed to feel pain during the operation.
使用笑气之后，人们在做手术期间好像能感觉到疼痛。
Using the laughing gas, the people seemed to feel pain during the operation.
使用笑气之后，人们在做手术期间好像能感觉到疼痛。
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