Dichlorodiethyl
sulphide[化]二氯二乙硫醚,芥子气
🗣️ 情景例句
He tried to smile.
他设法要微笑。
I'll do my best.
我将会尽我最大努力。
(remember how easily the Apollo astronauts bounded along),
还记得阿波罗飞船中的宇航员轻松地跳跃-