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"A story has no beginning or end: arbitrarily one chooses that moment of experience from which to look back or from which to look ahead."

I believe that love is a better teacher than the sense of duty， he said， at least for me.

衡量礦業(yè)公司成功的真正標(biāo)準(zhǔn)是其如何平衡利潤與環(huán)境責(zé)任。

天下人都說這是他們努力的結(jié)果，不會說“這是我見到了命”。?

化學(xué)的基本問題是化學(xué)鍵的性質(zhì)。