2. He doesn't have mastery of the basic rules of grammar. 他没有掌握基本的语法规则。
3. Later, I developed a broader theory of what separates the two general classes of learners helpless versus mastery oriented. 后来,我发展了一个更广泛的理论来区分无助型学习者和掌握型学习者。
4. The mastery oriented children, on the other hand, think intelligence is not fixed and can be developed through education and hard work. 另一方面,掌握型儿童认为智力不是固定的,可以通过教育和努力来发展。
5. Later, I developed a broader theory of what separates the two general classes of learners-helpless versus mastery-oriented. 后来,我提出了一个更广泛的理论,来区分无助型学习者和掌控型学习者。