headlong

headlong
adverb& adjective
  1. [as adv.]with the head foremost
    头在前地(的)
    he fell headlong into the tent.
    他一头栽进了帐篷里。
  2. in a rush; with reckless haste
    匆忙地(的),草率地(的)
    [as attrib.adj.]a headlong dash through the house.
    匆忙冲着穿过房子。
    [as adv.]those who rush headlong to join in the latest craze.
    那些匆忙加入最近这股热潮的人。
语源
  1. middle English headling (from head + the adverbial suffix -ling), altered in late middle English by association with -long
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