我的书包里有一本数学书。
There is a maths book in my schoolbag.
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book英 /bʊk/|美 /bʊk/
There is a maths book in my schoolbag.
There is a maths book in my schoolbag.
There is a maths book in my schoolbag.
在 App 中完整学习这张卡片
在 App 中学习