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When we talk about food security, we're really talking about national security.
The pursuit of mathematical truth is a noble endeavor.
Understanding pain at a molecular level opens doors to targeted therapies.
为了取得比赛的胜利,要我做什么都可以,不管是坐在板凳席上给队友递毛巾、递水,还是上场执行致胜一投。