长度单位;T)a/|)L-r
找到以下物品,先估计有多长,再拿尺子量一量。;T)a/|)L-r
提示:;T)a/|)L-r
钥匙){/C5c4M'x5u9J厘米;T)a/|)L-r
电池/U,t,X2o:j+a:o:H/E;T3M4q0N9D:m.A6J6q,u3[0s厘米;T)a/|)L-r
筷子,@3k.b,i4y9E1a9L6D.Z)Z4m)])x2@厘米;T)a/|)L-r
铅笔3A9|-D4p/I7r-K7d5o'{厘米;T)a/|)L-r