The expression of CD57 was lower than the expression of CD68 in ovarian cancer(P<0.05).
各级别卵巢癌组织中CD57表达量明显低于CD68表达量（P〈0.05）。
Their evaluation on teachers theory and expression ability by all was lower.
各层次护生对带教老师的理论水平和表达能力评价较低。
To mother's facial expression mortified, lower the brain.
向妈妈脸色尴尬，低下头去。
Upper case and lower case can be freely used in expression;
大写和小写可以自由使用表达；
Upper case and lower case can be freely used in expression;
大写和小写可以自由使用表达；
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