What is difficult to do before an earthquake?

在地震前什么是难以做到的？

Why do you think resolutions may be difficult to keep?

你为什么认为决心难以坚持？

Two years ago, I was told I had a serious disease which was difficult to cure.

两年前，我被告知我患有一种难以治愈的严重疾病。

His name is difficult to remember.

他的名字难以记住。

This task is difficult to complete.

这个任务难以完成。

This decision is difficult to make.

这个决定难以做出。

This problem is difficult to solve.

这个问题难以解决。

These words are difficult to pronounce.

这些单词难以发音。

The anvil was heavy and difficult to move.

铁砧很重，难以移动。

The knar made the wood difficult to cut.

树节使得木头难以切割。