Pentylene
戊二 烯
??? 情景例句
Perfect!
太棒了！
I'm brushing my teeth in the bathroom.
我在浴室刷牙。
He can get up for about two hours each day, but you must keep the room warm.
他每天可以起來兩個(gè)小時(shí)，但您必須保持房間溫暖。