touch contact

例句：

1. 1. The cattouched the wall with its paw.
   猫用爪子碰了墙。
2. 2. Shetouched his arm gently.
   她轻轻地碰了他的手。
3. 3. Thefireman had to touch the flameswith a hose to extinguishthem.
   消防员不得不用水管触碰火焰来扑灭它们。