一些州要求家长或家庭教师达到教师资格认证标准。
Some states require parents or a home tutor to meet teacher certification standards.
明年一月开始他将学习教师资格认证的课程。
He will begin taking teacher credential courses next January.
美国是世界上教师资格认证制度最完善的国家之一。
The teacher certification system is the key link and the most important contents.
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