如果是这样，不要害怕；我们所有人有些时候都是那样子。
如果是在一个习惯左手系的星球上，那样我们的习惯会完全相反，就是这样了。
If we had been on the planet with left-handed coordinate systems then actually our conventions would be all the other way around, but they are this way.
如果是那样的话，我今天就不应该做饭了，因为昨天我已经做了，这样就公平了。
In that case, I shouldn't have prepared the food today, because I did it yesterday. That's fair.
如果是那样的话，我今天就不应该做饭了，因为昨天我已经做了，这样就公平了。
In that case, I shouldn't have prepared the food today, because I did it yesterday. That's fair.
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