Dideuteroethylene
二氘(代)乙烯
🗣️ 情景例句
How are you doing?
你好吗？
Her dress is behind the table.
她的衣服在桌子后面。
Please get those things off, sir, and throw them into the fire.
请把您身上那些东西脱下来吧，先生，把它们仍到火里去。