Dibutyl sulfone
[化] 二丁砜
🧩 词语组成解析
[机] 二丁基
n. <美> = sulphone
🗣️ 情景例句
at all the great places in the city.
去城市所有的好地方看看。
Don't forget to invite him.
不要忘记邀请他。
But the station master was adamant: rules could not be broken and she had to watch that train disappear towards her destination while she was left behind.
但站长态度坚决，规章制度不能破坏，姑娘只得眼看那趟火车消逝在她要去的方向而撇下了她。