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- Although the treatise may appear at first glance to rest on rather unstable ground, Alberti reassures the reader and buttresses his theory with the logic of mathematics. 虽然论文乍看起来立论不够扎实，但阿尔贝蒂以其严谨的数学逻辑来支持他的理论并使读者信服。
- It is reported that at the time passing coincides with the team to do Bynum relay in the air, followed by Bynum unstable ground floor and fell, landing directly to the knee. 据悉，当时正逢队友传球给拜纳姆做空中接力，之后拜纳姆落地不稳摔倒在地板上，膝盖直接着地。
- Rescue workers combing through collapsed buildings fear that the current death toll could rise if daily rains and unstable ground trigger mudslides in the coming days. 在倒塌房屋搜索（幸存者）的救援人员担心在未来的几天内连日的降雨和不稳定的地表引发的泥石流可能会使目前的死亡人数上升。
- When railroad lines run over swampy or unstable ground, they are sometimes supported by layers of timber and smaller pieces of wood that form a sort of raft on which the ballast and tracks are placed. 铁道线路过沼泽或者土壤不稳定的地带时，人们有时还用原木和小块的木材修成木筏一样的结构，再在上面铺道碴和轨道。
- The fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
- The ground was covered with ferns. 地面上长满了羊齿植物。
- He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
- Rachel who died last week was still above ground. 雷切尔上星期去世，现在还没安葬。
- The price of gasoline is unstable. 汽油价不稳定。
- This car really comes into its own on rough ground. 这辆汽车在颠簸的路上才真正显示出它独特的性能。
- They put some wreathes on the ground. 他们把一些花环放在地上。
- The ground was ploughed and planted with corn. 地翻耕后种上了玉米。
- Most of the countries in the region have unstable economies. 这个地区大多数国家的经济都不稳定。
- He takes his ground on intuition. 他的意见是凭直觉。
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- A good hot summer could dry the ground out. 一个炎热的夏天可以将大地干透。
- The cause of flight of capital is the unstable political situation. 资本外逃是因为政治的不稳定。
- Bob pecked at the hard ground with a pickaxe. 鲍勃用鹤嘴锄在坚硬的地面上挖掘。
- The table is unstable because one leg is shorter than the others. 这桌子一条腿比其它的腿短，所以不平稳。
- The fence posts were fixed firmly in the ground. 栅栏的立柱牢牢地固定在地上。
