Pyruvonitrile
丙酮腈
🗣️ 情景例句
Many business people turn off their pagers and cell phones during their leisure time.
许多商人在他们的休息时间里都把传呼机和移动电话关掉。
Perhaps he isn't here.
也许他不在这儿。
Those who failed to get in need not have felt disappointed, as many of the artistes who should have appeared did not come.
那些没能进到场内的人没有必要感到失望，因为很多应该出场的专业演员都没有来。