hit the ground running

基本解释

Ground-nesting birds like the brush turkey are precocial — they hit the ground running when they are born, a crucial defense from predators.
像丛冢雉似的筑巢鸟为早成鸟——当它们出生时就能击地而跑——这种技能是防护捕食者的重要手段。
They had clearly absorbed the message he had been drilling into them at their Rustenburg training ground the past fortnight: England hit the ground running.
球员已经清楚知道这个意思，在过去的两周勒斯腾堡训练场上卡佩罗就已反复向他们灌输：英格兰要一炮打响。
If you’re anything like me, you wake up in the morning, hit the ground running, work through lunch, and only stop thinking about your job when your head hits the pillow.
如果你和我一样，早上一起床就快马加鞭地开始工作，一直到吃午饭，只有在晚上睡觉的时候才停止想你的工作。

you can hit the ground running, as we say.
也就是说，你可以立刻进入状态。
写推荐书的人 - SpeakingMax英语口语达人

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