But it is also this natural tendency that makes trading (which looks like it should be easy) extremely difficult.

但是就是这个自然倾向导致交易(看起来很简单)极度困难。

youdao

Even your family's safety, choose a path is how difficult, and pain, but also needs extremely big of courage.

甚至家人的安危，选择一条道路是如何艰难，以及痛苦，还需要无比大的勇气。

youdao

We also had to outfit all of the touring vehicles with special UV-protection tinting and make numerous accommodations for my illness, extremely difficult and tedious but I did find ways to compensate.

我们还必须把所有的旅游车辆都进行着色，用来防护特殊防紫外线， 以及其他很多为我的疾病而做调整的措施。 这些都不简单，让人讨厌， 但我还是找到了折中的办法。

youdao

But he was also extremely large and difficult to control.

VOA: special.2009.02.23

But the conflicting interests of all the different parties and their deep political pockets also make wholesale reform extremely difficult.

ECONOMIST: Health care: Thirty-six places to go | The