1. Have difficulty (in) doing something
结构： `have difficulty (in) + 动名词`
例句：
She has difficulty (

清晨的阳光刚爬上书桌，三个英文短语正挤在笔记本里窃窃私语。它们都说着"做某事有困难"的意思，却穿着不同的语法外衣。当中国学生推开单词本的刹那，"have difficulty doing"、"stru

清晨的阳光刚爬上书桌，三个英文短语正挤在笔记本里窃窃私语。它们都说着"做某事有困难"的意思，却穿着不同的语法外衣。当中国学生推开单词本的刹那，"have difficulty doing"、"stru

1. It's hard/difficult to do something
最基础表达
例句：It's hard to learn a new language at an older age.

1. Have trouble (in) doing something
例句：She had trouble solving the math problem.
（她解这道数学题有困难）
介词

1. Have trouble (in) doing something
例句：She had trouble solving the math problem.
（她解这道数学题有困难）
介词

1. Have difficulty (in) doing something
（最常用结构，注意 difficulty 是不可数名词）
I have difficulty understandi

1. 动词短语（最常用）
struggle with (doing) something
例句: She struggles with understanding math formulas.

1. 动词短语（最常用）
struggle with (doing) something
例句: She struggles with understanding math formulas.

1. It's hard/difficult to do something
最基础表达
例句：It's hard to learn a new language at an older age.