Perkins'reaction
[机] 珀金斯反应
🗣️ 情景例句
Where's the 'Lost and Found' counter?
失物招领处在哪儿？
Miss Judy Levine comes from the University of Wisconsin.
朱迪.莱雯小姐来自威斯康星大学。
We don't need it until next month.
我们要到下个月才用得着。