Dfdt
[医] 二氟二苯三氯乙烷(强烈杀虫剂)
🗣️ 情景例句
She looks just like Grandma at that age.
她和她奶奶年轻时候长得一模一样。
It's up to us to help those in need.
我们有责任帮助那些有困难的人。
If you learn even a little English, you will find it usedful after you leave school.
假如你哪怕只是学一点英语，毕业后，也会发现它是有用的。