Diethoxymethane
二乙氧基甲烷
🗣️ 情景例句
People are busy shopping and wrapping presents for relatives and friends before Christmas Eve.
在圣诞节前夜，人们忙着为亲朋好友买东西、包礼物。
What has the captain ordered us to do?
船长命令我们做那些事？
Suppose it rains,what shall we do?
万一下雨，我们该怎么办？