形容詞 neck and neck:

1. inconclusive as to outcome; close or just even in a race or comparison or competition
   同義詞：head-to-head, nip and tuck

副詞 neck and neck:

1. even or close in a race or competition or comparison
   同義詞：head-to-head, nip and tuck

1. Sales analyses show these two products are still vying neck and neck to corner the market.
   銷售分析表明，這兩種產(chǎn)品在競爭壟斷市場方面仍然不分高低。
2. It is a neck and neck horse race right down to the wire.
   這次跑馬賽從頭到尾都勝敗難分。
3. The two contestants are neck and neck with 20 points each.
   比賽雙方各得20分，打成平局。
4. Russia and the United States are neck and neck in the race to send a manned spacecraft to Mars.
   蘇聯(lián)和美國在發(fā)射載人宇宙飛船去火星的研制方面，可以說是并駕齊驅，不相上下。