他的提议将禁止向13岁以下儿童销售智能手机。
His proposal would ban sales of smart phones to children under the age of 13.
法律禁止棉纺厂雇用十岁以下的童工。
The law prevented the employment of children under ten in the cotton mills.
法国通过了一项法律，禁止15岁以下的孩子在学校使用手机。
France passed a law banning the use of mobile phones on school grounds for children under the age of 15.
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