Pyrocomane
1, 4-吡喃酮, 焦考曼
🗣️ 情景例句
John proposed marriage to Helen.
绚翰向沦论求婚。
It won't work.
行不通。
He said that it would be possible to build a platform in the centre of the Channel.
他说，可以在隧道中央建造一座平台，这座平台将用作码头和火车站。