Engineers on the ground designed a way the astronauts could connect air-cleaning devices from the command module to the air system in the lunar module.

VOA: special.2009.07.22

Even when presented with the option to cease philosophizing, he refuses to do so on the ground that, again, he is acting under a command, divine command and cannot do otherwise.

就算他,可以选择停止哲思，但他拒绝那么做，理由是他已接受指示，神性指示，所以别无选择。

耶鲁公开课 - 政治哲学导论课程节选

Or how do you foresee that, alas, it may not work if the general in command on the ground has to go through both the United Nations in New York and the African Union in Addis Ababa?

NPR: Ex-U.N. Commander in Rwanda Sends Warning