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解释:既要追悔以往的过失,也要预防将来可能发生的错误。
Innovation in forestry means finding ways to do more with less.
The artist must be a dreamer of the impossible.
The responsibility of agricultural scientists is to make the land produce more grain and let farmers harvest more.
好的研究关键不仅在于方法,还在于问题的清晰性和数据的质量。