我并不需要每分每秒都在最佳状态，但关键时刻我的发球和追球不能掉链子。

I wasn't necessarily playing my best tennis the whole way throughout, but I served well when I needed to and I chased the ball down.

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取水权由于其自身特殊性，在通常情况下不具有排他效力和追及效力。

Generally speaking, the water intake right does not have the exclusive effect and the pursuing effect.

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以优质强筋小麦济南17为材料，研究氮肥不同施用量、基追比和追氮时期对小麦籽粒产量和品质的影响，分析了产量与品质的关系。

Jinan 17. a strong gluten wheat, was taken as an experimental material to study the effect of nitrogen application methods on grain yield and quality.

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They're all over each other sometimes and they can spread saliva or other fluids.

有时候他们会在一起追跑打闹,病毒和疫苗可以通过唾液或其它体液传播

耶鲁公开课 - 生物医学工程探索课程节选