A couple of hours of theory, using the language unnaturally for exam purposes, and some half-interested homework - this barely adds up to a few weeks of real work even over half a decade.

几个小时的理论，为了通过考试而机械地去练习外语，以及一些没有兴趣投入的家庭作业…。按照这样即使学了好多年，真正学习的时间加起来也不过几个礼拜而已。

youdao

If you feel only half interested, if you find yourself more excited by your leisure time, then most likely you have not chosen a field that engages you.

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Ms. Russell is one of as many as a half-dozen people in whom investigators are interested as they seek to determine if the brothers had any help in the bomb attack or the days afterward, the officials said.

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And the crowd that funded his social venture was the famed Junto, a loose coalition of smart young Philadelphians interested in the public good in the first half of the 18th century.

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