真正的‘完美’在世界上是难以找到的。

And genuine 'goodness' is hard to find in this world.

youdao

常常是暗淡和难以找到的水母星云，被拍进这张迷人的假彩色望远镜照片。

Normally faint and elusive, the Jellyfish Nebula is caught in this alluring, false-color, telescopic view.

youdao

这里还将包括一些你在日常的项目开发中经常用到的，但是你需要的时候又比较难以找到的一些基本技巧。

We also included some basic techniques you can probably use in every project you are developing, but which are hard to find once you need them.

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