语言发展的关键期是在幼儿期.The critical period of language development in early childhood.良好的幼儿期教育很重要, 这一点不言而喻.It's a no - brainer, of course , that high - quality child care is important.幼儿期的成长相当快.Growth is rapid in infancy....
In the presence of ethanonitrile and glycol, anisole reacts with ammonium ceric nitrate to form o - nitroanisole.在乙腈、聚乙二醇存在下, 用苯甲醚与硝酸铈铵反应合成了邻硝基苯甲醚.Isoamyl butyrate was synthesized by using ceric sulfate as the catalyst.以...
骡子是母马和公驴的杂交后代.A mule is a cross between a mare and a donkey.没人能乱叫他 “ 公驴”而不受惩罚的.No one was going to call him a jackass and get away with it. "现在, 只有最大的那只公驴还留在斜坡的边上, 他盯着我看.Now, only the biggest of them remained at the edge...
He's too mean to make a donation.他很小气, 不肯捐款。The benefit to the donor was an acknowledgment of the donation in a printed bulletin...捐赠者被印入捐赠公示榜以示感谢。to make a donation to charity向慈善事业捐赠Success is to keep authorial don...