在马上

• a cheval
• ahorse

例句

1. 帕特骑在马上比步行更加神气。
   Pat looks better outside of a horse than no foot.
2. 对了！现在马上就用３个球试一下，你很快就会成为一名魔术师。
   That's the idea! Now try it with three balls at once and you'll soon be a juggler.
3. 骑手的夹克后背上开着长叉，使他骑在马上穿着更舒服。
   The rider's jacket is slit up the back to make it more comfortable to wear when riding.