hard to

很难控制自己的感情

It's hard to control your feelings

难对付的

Hard to deal with

生而不养很难听

It's hard to be born without food

我觉得自己很难适应高山气候

I find it hard to adapt to the alpine climate

一个新的开始真的有那么难吗

Is it really that hard to make a new start

我发现这些单词很难拼写

I find these words hard to spell

做学生太难了

It's too hard to be a student

难懂的

Hard to understand

当你接近山顶时很难吸入空气

It's hard to breathe air when you're near the top of the mountain

听懂英语口音太难了

It's hard to understand English accents