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"The truth is rarely pure and never simple."

And when his audience grew bored, he would spring into the air and do a back flip with a half twist.

Look at a day when you are supremely satisfied at the end. It's not a day when you lounge around doing nothing; it's a day you've had everything to do and you've done it.

采礦的未來在于平衡經濟增長與環境管理。