earthing

• Why on earth did they bother to get married ?
  他们干么费那么大事去结婚？
• The earth is believed to have a liquid core .
  人们相信地球有一个液态核。
• Our stay on earth is not for long .
  我们活在世上转眼就是一辈子。
• Where on earth is fighter command ?
  战斗机司令部究竟干什么去了？
• This telemetry streamed back to earth .
  这种遥测系统源源不断地送回地面。
• The earth revolves once a year around the sun .
  地球一年绕太阳公转一次。
• What is the future course of the earth ?
  地球将来的去向是什么？
• The parachutist floated gently down to earth .
  跳伞者轻飘飘地降落到地上。
• The damaged plane spiraled towards the earth .
  损毁的飞机旋转着跌向地面。
• The softness of the earth gave him an idea .
  软塌塌的地面启发了他的灵感。