Rigours
n. 严格( rigour的复数形式 ); 严谨; 严酷; 艰苦
🗣️ 情景例句
And I'd also like to thank my math teacher
我还要感谢我的数学老师
It's faster but more expensive to ship goods by air.
空运较快但运费较高。
It's a book.
一本书。