People are learning it worldwide because they have the expectation that they will be able to use the language they have learned in any part of the world.

全世界的人们都在学习它，因为他们希望在世界各个地方都能用得上所学的这门语言。

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Some simulation results show the rationability of stable in the conditional expectation and the efficiency of improved iterative learning control law.

一些仿真结果表明给出的依条件期望稳定的合理性，改进的迭代学习控制律和稳定性定理的有效性。

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And the excellent teachers with high expectation of their students tend to increase the overall learning achievements of the class by providing active learning and affective environment.

高期待的优秀教师在课堂里会通过提供积极的学习与情感环境来提高 班级学生整体学习 成绩；

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Dr Belton, who is an expert in the impact of emotions on behaviour and learning, said boredom could be an "uncomfortable feeling" and that society had "developed an expectation of being constantly occupied and constantly stimulated".

BBC: Children should be allowed to get bored, expert says