几天前（16/17号）通过SpaceX的Falcon9（猎鹰9号）火箭推送升空的的第一个通过认证的商用飞行器Crew Dragon（龙飞船）Resilience到达ISS（国际空间站）的宇航员Victor Glover发推说各项工作迅速全面展开(hit the ground running)， 但他仍然需要时间来熟悉工作/生活的环境和情况、找到自己的方向和节奏(find his bearings)。
Hit the ground running
原意/字面意思：
The idiom has following possible origins:
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troops dropped into a combat zone（士兵达到战斗区域后）迅速行动,
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from stowaways（偷渡者、偷乘者） jumping off a freight train as it nears the station（偷渡者、偷乘者在快到车站时跳车）迅速离开,
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or from Pony Express （美国1860年的”五百里加急“快递） riders avoiding delay when they changed mounts,
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soldiers who are expected to land from parachutes or from helicopters and get straight into action（伞兵降落后迅速行动）.
引申意/喻意：
To start doing something with energy and enthusiasm quickly and typically, successfully. （到达目的地或工作岗位后）迅速顺利充满热情地开始工作或行动等。
用例：
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As soon as the front office gave its approval for the new department, we hit the ground running.
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I'm confident that our new CEO will just hit the ground running once she starts here.
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A decade ago I had a lot more energy. I would wake up, hit the ground running, and never stop until I went to bed again.
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Find/get/lose someone's bearings
原意/字面意思：
A bearing is a machine element that constrains relative motion to only the desired motion, and reduces friction between moving parts. 轴承是用来限制部件或构件向设定方向移动或按照设定轨迹运动的机械部件。
引申意/喻意：
To recognize or determine one's orientation, position, or abilities relative to one's surroundings or situation. 在新的（工作或生活）环境里找到（与环境或条件相适合的）方向、方位、位置等。
用例：
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It took me a little while to find my bearings in the new office, but after a week, I felt as if I'd been working there for years.
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We need to get above the tree line if we're going to find our bearings and reach the campsite before dark.
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I’ve only been in the job for a week so I’m still finding my bearings.
