Pentone
缬烯炔, 异戊烯炔
🗣️ 情景例句
May I please speak to Mr. Kong?
我可以孔先生讲话吗？
She had to keep out of sight when her husband was holding a meet.
她在丈夫举行会议时只得避不露面。
with, superimposed upon, it the continents, together with the islands and other features of the oceans.
上面附加着大陆以及岛屿和海洋的其他形态。