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历史:
高考 CET-4 CET-6 考研 IELTS BNC: 1277 COCA: 1730
    Word Originlate Middle English (in the sense a loop; also as a verb in the sense ‘connect physically’): from Old Norse hlekkr, of Germanic origin; related to German Gelenk ‘joint’.
    Word Originlate Middle English (in the sense a loop; also as a verb in the sense ‘connect physically’): from Old Norse hlekkr, of Germanic origin; related to German Gelenk ‘joint’.

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