But with the improvement of living standard and the prolongation of average life-span the regulations gradually show their defects.

随着生活水平的提高，人均寿命的延长，这一规定逐渐显示出其弊端。

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But with the improvement of living standard and the prolongation of average life-span the regulations gradually show their defects.

随着生活水平的提高，人均寿命的延长，这一规定逐渐显示出其弊端。

youdao