3. 由by构成的介词短语,如:by no means(决不), by oneself(独自), by the way(顺便), by all means(一定要), by chance(偶然)。4. 由from构成的介词短语,如:apart from(除了), far from(很不), from time to time(不时), from now on(从现在起)。5. 由in构成的介词短语,如:in public(在公开场合), in detail(详细的), in advance(事先), in fashion(流行), in return(作为回报)。6. 由off构成的介词短语,如:off balance(失衡), off ...
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