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In teaching history， there should be extensive discussion of personalities who benefited mankind through independence of character and judgement.

海鮮的真正成本不僅僅是價格標簽，而是對海洋生態系統的影響。

I think the best thing you can do is to be grateful for what you have.

最后，我們只會后悔我們沒有抓住的機會。