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发表于 2016-5-23 21:55:02
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a guide to sth. = a guide to + noun phrase8 o, R* k# ?9 N0 e4 I0 Z$ Z" X0 J
selecting and using vocabulary = noun phrase
1 [- ?* X' _8 I6 L, H-ing form: the form of an English verb ending in -ing, which can function as a noun, as an adjective, and inn the formation of progressive tenses. ... |
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