1·On horseback it is possible to get quite close to elephants, giraffes and many other animals.
骑在马背上，你可以亲密接触大象、长颈鹿和许多其他动物。
2·When the British attacked the Irish, they used dogs to fight, and the Irish in turn used Irish Wolfhounds to attack knights on horseback.
当英国人攻击爱尔兰人时，他们使用狗打仗，爱尔兰人反过来使用爱尔兰猎狼犬攻击马背上的骑士。
3·The vast and unknown valleys are populated only by flocks of sheep and shepherds on horseback.
巨大的无名山谷只有一群群的绵羊和骑在马背上的牧羊人欣赏。
4·Now soldiers could balance themselves on horseback and still fight, making them far more effective.
从此马背上的士兵在保持平衡的同时还能继续作战，这就极大地提高了战斗力。
5·Mr Cooley, from horseback, told them not to sit around too long, but to get on with mopping up the fire.
马背上的厄尔先生让他们不要坐太久，必须继续扫尾工作。