Undecylene
十一碳烯
🗣️ 情景例句
Yes?
是吗？
How many pieces are you going to take?
你要拿几支？
The wooducutter was standing next to a fallen tree, with lots of small pieces of wood in front of him.
伐木工人正站在一棵倒下的树旁，他的前面有很多小片的木头。