1. Have difficulty (in) doing something
结构：主语 + have difficulty (in) + 动名词
例句：
She has difficulty understanding heavy accents.（她在理解浓重口音上有困难。）
They had difficulty finding the hidden documents.（他们很难找到隐藏的文件。）
注意：口语中常省略介词 "in"，直接接动名词。
2. Struggle with something
结构：主语 + struggle with + 名词/动名词
隐含意义：强调“努力尝试但仍有困难”
例句：
He struggles with public speaking.（他在公开演讲方面很吃力。）
Many students struggle with writing academic essays.（许多学生写学术论文很费劲。）
3. Have trouble (with) something / doing something
结构：主语 + have trouble (with) + 名词 / 动名词
例句：
I have trouble with complex math problems.（我在复杂数学题上有困难。）
Do you have trouble sleeping at night?（你晚上入睡困难吗？）
错误纠正：✗ have trouble to sleep → ✓ have trouble sleeping
4. Find it hard/difficult to do something
结构：主语 + find it + 形容词（hard/difficult） + to do
例句：
She finds it hard to focus in noisy environments.（她在嘈杂环境中难以集中注意力。）
We found it difficult to reach an agreement.（我们觉得很难达成一致。）
5. Have a hard time doing something（口语化）
结构：主语 + have a hard time + 动名词
例句：
He’s having a hard time adjusting to the new job.（他很难适应新工作。）
Did you have a hard time solving the puzzle?（你解这个谜题费劲吗？）
6. Face challenges in something（较正式）
结构：主语 + face challenges (in) + 名词/动名词
例句：
The company faces challenges in expanding its market.（公司在市场扩展上面临困难。）
Researchers face challenges in collecting accurate data.（研究人员在收集准确数据上有困难。）
常见错误提醒：
1. 介词误用：
✗ I have difficulty to speak English.
✓ I have difficulty speaking English.
2. 动词形式错误：
✗ She struggles to understanding the rules.
✓ She struggles with understanding the rules.
3. 搭配混淆：
✗ They have a hard time to finish the project.
✓ They have a hard time finishing the project.
场景应用：
学习场景：
I have trouble keeping up with the advanced physics class.
工作场景：
Our team is struggling with the tight deadline.
日常生活：
He finds it difficult to cook without a recipe.
根据具体语境选择合适短语，能更自然表达“困难”的程度和情境哦！
