burn-back

基本解释

War is merciless, never expect the Eight Power Allied Forces will go back empty-handed from Old Summer Palace. They did not forget to burn it down after the looting.
战争是残酷不仁的，不要寄望八国联军进圆明园空手而归，除了掠夺还要放一把火。
xuanfashangshiblog.com
So once the pebble is depleted a fresh pebble can be put it in or it can be re-circulated back in the reactor if its burn-up isn't all used up or the fuel isn't all used up.
所以，一旦球体被分离了，新的球体能够,放进去或者它能够在计算回反应堆里,如果它燃烧完了，但没有用完，或者燃料,没有全部用完。
Laundry bags, stairs, chairs and even the bare floor can help build strength and endurance and burn fat. Here are some back-to-the-basics tips for creating your own workout without breaking the bank
洗衣袋、楼梯、椅子甚至光地板都可以帮助你改善体力、提高耐力和燃烧脂肪。

ABC's hour-long drama is back to burn off the remaining six episodes, we'll give it another chance tonight.
ENGADGET: HDTV Listings for August 1, 2007 HD