你今天吐露的永恒的话语和思想，可以轻易地回到过去，在你开始抱怨之前，创造一个境况让你的背开始疼痛。
The timeless words and thoughts that you released today, could have easily traveled backwards in time, to create a situation for your back to start hurting, before you started complaining.
如果你的话语是永恒的、不受时间限制的，那么今天你说的话，既可以影响你的过去，也可以影响你的现在。
If your words are timeless, not bound by time, then your words today can affect your past as well as your present.
会不会是他们今天说的话回到过去，影响了他们的昨天，因为这些话不受时间约束？
Could it be that their words spoken today are affecting their yesterday, traveling back in time, because these words are not bound by time?
过去许多科学家本人较为富裕，如果今天的科学家可以那样的话，那么他们质疑主流观点就要容易得多。
It is easier to question mainstream views if you are independently wealthy, as many scientists in previous ages tended to be.
无论我们在过去大约20场比赛中的表现有多好，如果今天赛季就结束的话，我们依然和季后赛无缘。
No matter what we have done in the last 20 or so games, it's been great, but we're still on the outside looking in if the season ended today.
不要对你的过去和将来津津乐道而让生命从你的手指尖上匆匆流过，如果你的每个今天都过得好的话，你就能享受生命的所有日子。
Don't let your life pass through your fingers by living in the past or in the future. If you live well today, you live all the days of your life.
如果他们今天一早就离开家的话，再过半小时他们就该到了。(从句说明过去，主句说明将来。)
If they had left home early this morning, they would arrive in half an hour.
如果他们今天一早就离开家的话，再过半小时他们就该到了。(从句说明过去，主句说明将来。)
If they had left home early this morning, they would arrive in half an hour.
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