接地

例句：

1. 1. The power line must be securely grounded to prevent electrocution.
   为了预防触电，必须将电线安全接地。
2. 2. The satellite was successfully grounded in orbit around the Earth.
   卫星成功地在地球轨道上成功着陆。
3. 3. The engineer grounded the machine before starting it.
   工程师在启动机器之前将其接地。