Triquinacene
三戊并烯, 三环癸三烯
🗣️ 情景例句
My instructor thought that the beginner's class was too easy for me.
老师认为初级课程对我来说太容易了。
Delivery costs will have to be borne by the manufacturer, I'm afraid.
运费恐怕要由制造厂商来承担。
Yes, I think I have. Look at that book on the desk. Maybe it's yours.
是的，我想我看见了。请看桌子上的那本书。也许就是你的。