underpart 

  1. 名詞
(動植物或飛機等的)下部
次要角色, 從附屬地位

    同義字詞
bottom,underbelly,underbody,underside,undersurface

例句

  1. Here the wing underpart is treated.
  2. The underpart and side is white with blackish paintings.
  3. The legs and the underpart of the head are cast while the remainder is hammered.
  4. It also featured a 'slit stock'–the stock had a slot cut in its underpart just over a quarter-inch wide.
  5. Cons : The metal underpart bends and breaks really easily, even if you are under the weight limit (200lbs).