Teaching them manners at the right age and reinforcing them through their childhood is one of the most effective ways to teach your child to be polite.
在适当的年龄教给孩子相应礼节，并在童年时期一以贯之地巩固，这是教会孩子懂礼貌的最有效的一个方法。
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As we make strides in early identification, it's reassuring to know that we also now have effective interventions that are appropriate for children at risk for ASD as young as 12 months of age.
"One simple and effective measure to reduce soft drink consumption in this age group would be to remove soft drink machines from schools and other public places where adolescents gather," they wrote.