So this is not so completely unnatural.

因此这并非完全不自然。

This will feel very unnatural to you.

你会觉得这很不自然。

Voice came to him, and he cried aloud, -a hoarse, strange, unnatural cry.

他终于可以发出声音了，他大声喊叫——声音嘶哑、奇怪，极其不自然。

She does not make any unnatural mistakes.

她不会犯任何不自然的错误。

What you are planning to do is unnatural.

你所计划的事情是违反自然的。

And you're doing that through unnatural selection.

你在进行非自然选择。

He could feel it was black-an unnatural blackness.

但是他能感觉到天很黑——异常黑暗。

Exam week began and an unnatural hush fell over the castle.

考试周开始了，城堡里一片不寻常的静寂。

An unwillingness to change is unnatural.

不愿改变是不自然的。

There is, in other words, nothing unnatural in communicating.

换言之，沟通根本就是一件很自然的事。