During autumn, the leaves change color and fall down from the trees.
在秋天，树叶变了颜色，从树上掉下来。
He ran slightly askew. Sometimes he'd trip over his own feet and fall down hard.
他的步子有些踉跄，有时会被自己的脚绊住，重重摔倒在地。
You shall not fold your wings that you may pass through doors, nor bend your heads that they strike not against a ceiling, nor fear to breathe lest walls should crack and fall down.
你们不应只为穿过房门而敛起羽翼，不应以防止撞到天花板而低下头颅，也不应因担心墙壁破裂坍塌而屏住呼吸。
We might try a new sport and fall down but we get back up and eventually experience exhilaration, even for a minute.
我们可以尝试一种新的运动，虽然会摔倒，不过我们会重新站起来，最终会收获愉快，哪怕是一分钟的短暂快乐。
The material to be crushed is fed into machine from the feed opening of top, and fall down onto the central section of rotor rotating with high speed.
待破碎物料从顶部的物料投入口投入，落到高速旋转的转子中心部位。
To achieve real time automatic levelling and vertical rise up and fall down of the static pile driver′s case, an electro hydraulic levelling system is designed for the static pile driver based on PLC.
为使静力压桩机在工作过程中能够实现实时自动保持机身水平与水平升降，设计了一种基于PLC的压桩机电液自动调平系统。
To achieve real time automatic levelling and vertical rise up and fall down of the static pile driver′s case, an electro hydraulic levelling system is designed for the static pile driver based on PLC.
为使静力压桩机在工作过程中能够实现实时自动保持机身水平与水平升降，设计了一种基于PLC的压桩机电液自动调平系统。
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