2、This painting clearly belongs to a later period.
这幅画显然创作于后期 。
3、Starch grains in chloroplasts decreased in prophase and increased in anaphase steadily.
前期叶绿体内淀粉粒较多，中期减少，后期增多 。
4、The reason of these problems almost is the prophase works are not doing enough and result in the anaphasis work need to rework.
而这些问题的原因大多是前期工作做得不够细致，而导致后期返工 。
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