Pentone
缬烯炔, 异戊烯炔
🗣️ 情景例句
Let's what?
你说什么？
What nerve!
脸皮真厚！
Many of the tourists on board had begun bargaining with the tradesmen, but I decide not to buy anything until I had disembarked.
船上许多游客开始同商贩讨价还价起来，但我打定主意上岸之前什么也不买。