你可曾注意到当你在体侧摆动手臂的时候充血通常更严重了？
Have you ever noticed how the pump often increases as you begin the shakeout process with your arm by your side?
想象你这样走进面试官的办公室：你身板站直、肩膀舒展、身体平衡、步调自信、双手随意在两侧摆动，同时面带微笑。
Picture yourself walking into the interviewer's room standing tall, shoulders back, balanced, striding confidently with your hands swinging comfortably at your side, and smiling.
它围绕船底的一个钉子旋转，放下时提供压载力，以抵抗由于单侧风导致的船只侧向摆动。
Pivoting on a pin inside the hull, it swings down to provide ballast and resistance against sideways motion of the boat caused by the wind blowing from one side.
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