be/fall head over heels in loveLOT/VERY MUCHto love or suddenly start to love someone very much 深深地爱着/突然爱上 〔某人〕 Sam was head over heels in love with his new bride. 萨姆深深地爱着他的新娘。
be/fall head over heels in love• It wasn't just the usual liaison: the two of them fell head over heels in love.
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