The Moon Mineralogy Mapper could only examine lunar soil to a depth of a few millimeters.

VOA: special.2009.12.30

It was Galileo's job, you'll remember, with his telescope to detect the otherwise undetectable spots and imperfections in this seemingly, but only seemingly, perfect moon.

你们还记得，通过望远镜，观测到这个看起来，却只是看起来完美无缺的,月亮上的黑点和缺陷，是伽利略要做的。

耶鲁公开课 - 弥尔顿课程节选

The Moon Mineralogy Mapper can only observe lunar soil to a depth of a few millimeters.

VOA: special.2009.09.30

But United Nations Secretary General Ban Ki-moon says the Copenhagen Accord is only a beginning.

VOA: special.2009.12.26

Stafford and Cernan flew the lander down to only thirteen kilometers from the moon.

VOA: special.2009.07.08

Barack Obama was only seven years old when Neil Armstrong became the first man to set foot on the moon.

VOA: standard.2009.07.20