maintain in短语⁵¹²⁶³ 基本例句 保持处于…中；供养…使之以…生活 For groups of rules that share a set of common attributes and have similar structure, it can be convenient to maintain in a tabular form. 对于具有相同属性和相似结构的规则组，以表格形式表示它们比较方便。 ibm This is not an easy posture to maintain in Washington. 保持这种态度留在华盛顿可不容易。 blog.sina.com.cn