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be good at 后加http://www.so.com/s?q=%E5%90%8D%E8%AF%8D&,http://www.so.com/s?q=%E4%BB%A3%E8%AF%8D&或http://www.so.com/s?q=%E5%8A%A8%E5%90%8D%E8%AF%8D&。如;He is good at English (singing).
而do well in 后面跟V+ing。 或者这样解释:good是http://www.so.com/s?q=%E5%BD%A2%E5%AE%B9%E8%AF%8D&,well 是副词。 |
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