Pentone
缬烯炔, 异戊烯炔
🗣️ 情景例句
Governments wage a constant war against counterfeiting.
政府掀起持久的打假活动。
Are you happy with your new job?
你对这一次的新工作感觉开心吗？
Her first impulse was to go round all the rooms looking for the thieves,
她第一个条件反射是各个房间搜寻一下窃贼，