select children meaning in English

选定多个子代
选定子节点
选择子级

To return the parent record of a selected child record
返回选定子记录的父记录
That represents the currently selected child
表示当前选定子级的
The selected child cannot be retrieved
无法检索选定的子级。
Retrieves the currently selected child
检索当前选定的子级。
The programme , which selected children by lottery , provided researchers with an almost perfect experiment , akin to the “ pill - placebo ” studies used to judge the efficacy of new medicines
该项目通过抓阄选择学生，这为研究人员提供了一项几乎完美无缺的试验，类似于用来判定新药疗效的“安慰剂”方面的研究。