Feder
n. 菲德尔（姓氏）
🗣️ 情景例句
I have worked hard at my major subject.
我对主修课特别用功。
The data confirm that this product is safe and effective.
数据证实此种产品安全有效。
The English understand each other, but I don't understand them! Do they speak English?
英国人之间相互听得懂，可我却不懂他们的话！他们说的是英语吗？