have a difficult time doing sth和have difficulty doing sth是否都含有一个可以省略的in?我想问的是这个意思,have a difficult time中的time是不是和后面的doing有一定的同位关系,而后面的have difficulty后的doing

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have a difficult time doing sth和have difficulty doing sth是否都含有一个可以省略的in?我想问的是这个意思,have a difficult time中的time是不是和后面的doing有一定的同位关系,而后面的have difficulty后的doing

have a difficult time doing sth和have difficulty doing sth是否都含有一个可以省略的in?我想问的是这个意思,have a difficult time中的time是不是和后面的doing有一定的同位关系,而后面的have difficulty后的doing
have a difficult time doing sth和have difficulty doing sth是否都含有一个可以省略的in?
我想问的是这个意思,have a difficult time中的time是不是和后面的doing有一定的同位关系,而后面的have difficulty后的doing却相当于时间状语,可以这样理解吗

have a difficult time doing sth和have difficulty doing sth是否都含有一个可以省略的in?我想问的是这个意思,have a difficult time中的time是不是和后面的doing有一定的同位关系,而后面的have difficulty后的doing
没错,你可以省略in

是的

哈哈,谢谢楼上的