It's not very flexible.
“The reason they all quit was the transfer problem,” Horvath said. “They found that kids would be very good so long as they were using the tool, but as soon as they went off the tool, they couldn’t do it anymore.”
，详情可参考同城约会
两者的一个重要区别就在于，能不能坚持好、运用好马克思主义立场观点方法。
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