1.Establish a few reasonable rules for your kindergartner and, when appropriate, ask for her input when you make or update the rules.
当你建立和修改这些准则的时候，适当的时候，问问她的看法。
2.Researchers recruited walkers of different ages and sizes, from a three-foot-tall kindergartner to a six-foot adult.
研究人员征集了不同年龄不同身材的实验对象，从3英尺高的小朋友到6英尺的成年人。