一头的英文：
headlong
directly
rapidly
simultaneously

• A he-goat
  一头公山羊
• a dolphin breaking water.
  一头跃出水面的海豚
• He captured a lion unaided by anyone.
  他只身捕获一头狮子。
• A man without reason is a beast in season
  人无理智就像是一头发情的野兽
• A living dog is better than a dead lion
  一条活狗胜过一头死狮
• She was slender and had long dark hair.
  她身材苗条，有一头长长的黑发。
• An ox is grazing in a swampy meadow
  一头牛在一块泥泞的草地上吃草。
• The old man stuck a wild boar.
  老汉用梭标刺死一头野猪。
• I think he 's a pig . Pardon my French.
  我认为他是一头猪，饶恕我的骂人脏话。
• Sometimes a tame elephant is tethered nearby to give the wild one confidence.
  有时把一头驯服的象拴在附近以取得野象的信任。

• They made a headlong dash for the door.
  他们迅猛地向门口冲去。
• He…slammed the door and bounded headlong down the stairs
  他…砰的一声关上门，三脚两步奔下楼梯。
• Move or rush in the specified direction in a headlong or blundering way
  急促地或胡乱地朝某方向移动或猛冲

• He will be there directly.
  他马上就到那儿。
• We'll be off directly.
  我们要立刻动身了。
• The pollen is shed directly on the stigma.
  花粉直接散落在柱头上。

• The carriage rolled rapidly onward.
  马车急速地行驶着。
• The situation had rapidly deteriorated.
  局势很快恶化了。
• Apples cleared rapidly.
  苹果很快就卖光了。