01.international children's day：“六一”国际儿童节
02.children's day：六一儿童节
03. happy children's day! ：儿童节快乐
04. child n. 儿童，小孩 例如：child abuse(虐待儿童)，child labour(童工)
children：children是child的复数形式。例如：children's playground (儿童乐园)
05.childish adj. ① 孩子气的，孩子所特有的
eg：the little girl spoke in a high childish voice. 这个小女孩用尖尖的童声讲话。
②【贬】幼稚的，傻气的
eg：crying for things you can't have is childish. 想要的东西得不到就哭是孩子气的表现。
06. that's children's day. 6月1日，那是儿童节!
07.the pupils were all starched up in their new dresses for children's day.
小学生们穿得漂漂亮亮过儿童节。