it is difficult to do的意思|示意

I know that my own it is difficult to do, so I rarely promise.

我知道我自己很难做到，所以我很少承诺。

It is difficult to do this, I think.

我想这样做很难.

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It is difficult to do with her.

和她相处不易.

《简明英汉词典》

Needless to say it is difficult to do work when you are hungry.

不用说，空着肚子劳动是很难的。

Actually, it is difficult to do. Proper manners should be adopted.

其实这点是很不容易做到，主要是要讲究方式，大多数的时候我会采取一种委婉的语气，建议他“这样是不是会更好”，这样让他有一个从考虑到最后接纳的过程。