Newton's laws accurately describe many everyday phenomena, but at certain limits relativity theory and quantum mechanics must be used; even these do not apply to all situations and need further refinement.
牛顿运动定律准确地描述了许多日常现象，但在必须使用相对论和量子力学的某些限制下，这些定律甚至对所有情况都不能适用，而需要进一步细化。