You need to lift your head every now and then when you're reading, which is good for your eyes.
阅读时,你应该偶尔抬头,这对你的眼睛有好处。
Some scientists theorized that perhaps when the ground is slippery the high winds can then move the rocks.
一些科学家提出了一个理论:当地面很滑的时候,或许大风就可以移动岩石。
If you don't learn something when you fail, then all you've done is failed.
如果你在失败的时候没有学到东西,那么你就只是失败了。
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