Belgian rod mill
基本释义
比利时式线材轧机
实用场景例句
学术讨论
I find English grammar very difficult to learn.
我觉得英语语法很难学。
日常对话
It's difficult to wake up early in the morning.
早上起床早是很难的。
校园生活
The math test was difficult for many students.
数学考试对很多学生来说很难。
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