更糟糕的是，不仅天气模式发生了改变，而且人类社会也与以往不同了。
To complicate the picture, just as weather patterns have altered, so has human society.
改变与变好是两件不同的事。
To change and change for the better are two different things.
当与不同的人在不同的情况下交谈时，讲英语很棒的人会改变他们说话的方式。
In English, as in Chinese, we change the way we speak when we talk with different people.
当与不同的人在不同的情况下交谈时，讲英语很棒的人会改变他们说话的方式。
In English, as in Chinese, we change the way we speak when we talk with different people.
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