Pentylene
戊二 烯
🗣️ 情景例句
He treats everyone with courtesy.
他对待每一个人都很有礼貌。
The on-looker sees most of the game.
旁观者清。
and then generalized the results of his many experiments into the famous law of free fall.
然后将多次实验结果概括成著名的自由落体定律的人。