Finally finish de 800 words chi lit essay... thinking which mother had kept moving hse due to wanting to improve his son learning environment... finally, found de ans in de dictionary.

孟母: 孟轲ke1(孟子)的母亲. 相传孟轲小时候不认真学习, 孟母三千居处,改变环境,终于促使孟轲学业有成. 是封建社会里贤母的典范.