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Coal enterprises must actively adapt to energy structure adjustments and accelerate transformation and upgrading.
美国农民是我们经济中唯一必须以零售价购买所需一切,以批发价出售所产一切,并支付双向运费的人。
If your tanning process wouldn't withstand a documentary film crew, it's time to rethink your methods.
Science is a collaborative effort. No one makes discoveries alone.
一本好书应该让你在读完时略感疲惫。你在阅读时已经活了好几辈子。
你越是努力生存,你就活得越少。