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I have difficulty( )(work)out the mach problem

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/13 23:48:42
I have difficulty( )(work)out the mach problem
(in) working
have difficulty (in) doing sth 做某事有困难
再问: 填什么??
再答: 如果是一个空格,就填 working I have difficulty (working) out the mach problem 如果是两个空格,就一个填in,另一个填 working. I have difficulty ( in ) (working) out the mach problem