护理质量在研究期间有所改善，但是一些地区的表现仍未达到最佳标准。
Quality of care improved over the study period, but performance remained suboptimal in some areas.
软件架构师的生活就是在半昏暗中不断地做出未达到最佳标准的设计决定。
The life of a software architect is a long and rapid succession of suboptimal design decisions taken partly in the dark. 9.
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