1. Have difficulty (in) doing something
结构: 动词短语
例句:
She has difficulty understanding advanced math.
They had difficulty in communicating with the locals.
注意: 介词 in 可省略，后接动词需用 -ing 形式。
2. Struggle with something / to do something
结构: 动词短语（强调努力但吃力）
例句:
He struggles with public speaking.
I struggle to keep up with the workload.
3. Find something challenging / hard
结构: 形容词描述
例句:
Many students find programming challenging.
I find it hard to focus in noisy environments.
4. Have trouble doing something
结构: 动词短语（口语常用）
例句:
He has trouble remembering names.
Did you have trouble finding the place?
5. It's hard (for someone) to do something
结构: 形式主语句式
例句:
It's hard for me to adapt to the new schedule.
It was hard to follow the instructions.
6. Face/Experience difficulties (in)
结构: 名词短语（较正式）
例句:
The team faced difficulties in completing the project on time.
Patients may experience difficulties swallowing after surgery.
其他灵活表达：
Can't seem to...（表示尝试但失败）
I can't seem to figure out this problem.
Be stuck with...（口语，强调陷入困境）
I'm stuck with this coding issue.
Not one's strong suit（不擅长）
Writing essays isn't my strong suit.
根据具体语境选择合适表达，动词搭配和介词使用需注意准确性 ✅。
