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哲学在成功时是装饰品,在失意时是避难所,在年老时是供应品。
如果物体处于静止状态或作匀速直线运动,只要没有外力作用,物体将保持静止状态或匀速直线运动状态。
Good policy requires both sound theory and empirical validation.
The key to long-term success is balancing short-term performance with sustainable growth.