Heptalene
庚间三烯并庚间三烯, 庚搭烯
🗣️ 情景例句
and wrote to his wife Martha.
给他妻子Martha写信。
Those goods are available in strong wooden drums of 1,2,5,10 and 20 litres.
这些货物分别装入1、2、5、10、20升的木桶里。
Sometimes they eat it in the park or on the road. This take-away food is very popular.
有时他们在公园里或路上食用。这种方便食品颇受欢迎。