Methylvinyl
甲乙烯
🗣️ 情景例句
Floors one to eight are the elevators to the left.
一到八楼上下使用的电梯在左边。
A bad workman quarrels with his tools.
拙匠常怨工具差（人笨怨刀钝）。
Take it easy.
别紧张。