Valylene
缬烯炔, 2-甲基-1-丁烯-3-炔, 异戊稀炔
🗣️ 情景例句
and we know you will all work together
我们相信各位会共同出力
What is worth doing at all is worth doing well.
事既值得做，就把事做好。
Think carefully before you act.
三思而后行。