a.

1. （两点间）中途的
   The runners reached the halfway mark in the race after 49 seconds.

   比赛四十九秒钟后，赛跑选手抵达了中点。

2. 不完全的，不彻底的
   Halfway measures won't solve the problem.

   不彻底的措施将不能解决这一问题。

ad.

1. 在中途；到一半
   I'll meet you halfway between your house and mine.

   我在你的房子和我的房子的中间处与你碰面。

   You can't go halfway when you're painting the walls.

   你刷墙不能只刷一半。

2. 不完全地，不彻底地
   These government measures only go halfway towards solving the problem.

   这些政府措施仅能解决问题的一部分。

adv.

adj.

1. at or to a point equidistant between two others.
2. [as adv.] to some extent:
   a halfway decent bookshop.