Cushion can turn over changeover to use, answer to retroflexion every week, make wear away to distributing equably.
垫子可翻转换用，应每周翻转一次，使磨损均匀分布。
This has involved the publication of the draft national changeover plans and the work of the standing committee with business.
其中包括公布全国改制计划草案和商务常务委员的工作。
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