Heptadiene
庚二烯
??? 情景例句
May I call you Malcolm?
我能稱你 Malcolm 嗎？
Do you ever play basketball after school?
你曾經在放學后打籃球嗎？
All the thing I had packed so carefully were soon in a dreadful mess.
所有細心包裝好的東西一會兒工夫就亂成一團。