Dinitrofluorobene
二硝基氟苯
🗣️ 情景例句
Can you cash this check for me?
你能替我兑现这张支票吗？
Which train do I take to Philadelphia?
去费城乘哪趟车？
Then he sat there and looked at it for three hours! He didn't write a word!
然后他就坐在那里，对着考卷看了3个小时，一个字也没写！