The "six" in the expression comes from the six feet that make up a fathom -- which is a little less than two meters.

VOA: special.2011.03.06

But the guards, the "Giants," they were called, who guarded Frederick the Great were giants because they were six feet tall.

不过,腓特烈大帝的警卫团,只是因为身高6英尺,就被称为"巨人团"

耶鲁公开课 - 欧洲文明课程节选

He would be consumed with the consideration of whether to bury it here or whether to bury it there -- or should he bury it two feet under, or maybe he should bury it six feet under?

他会一直想把它埋在这里还是那里,或者埋两英尺还是，六英尺？

耶鲁公开课 - 弥尔顿课程节选

thirty-six feet per second up. Very smooth, very quiet ride."

VOA: special.2009.07.15

He's a basketball player, so he's really, really tall, except he's only six feet.

他是个篮球运动员,所以他长的很高很高,但是只有6英尺

耶鲁公开课 - 死亡课程节选

the final six feet at the bottom of the ocean.

VOA: special.2009.05.24

I mean, isn't it somewhat inefficient to load it really deep, because I assume if a spear is only six feet long, what are people in the back going to be doing?

我觉得,过于厚实的方阵会影响效率,据我所知,长矛也就六尺来长,那站在方阵后方的战士都在干什么呢

耶鲁公开课 - 古希腊历史简介课程节选

Six feet deep and three feet wide.

VOA: special.2010.03.25

Feet, of course, has a lot of meanings, and Milton's poetic feet, the material of the verse written in six and eight and ten syllables in this poem, are also in 1634 printless -- they're unpublished.

双脚，当然有很多意义，而弥尔顿富有诗意的双脚,这首六，八，十音节的诗，在1634年也是不留痕迹的--因为那时候还没有出版。

耶鲁公开课 - 弥尔顿课程节选

(OMITTED) "The Back-Up Plan" marks the feature film directing debut of Alan Poul, an award-winning television producer and director on shows including "Six Feet Under."

VOA: standard.2010.04.30

Its length might be anywhere from six to eight feet in length.

这种武器大概长六到八英尺

耶鲁公开课 - 古希腊历史简介课程节选

Twenty feet -- that's six meters. Other suggestions include putting more distance between you and the device and using good lighting.

VOA: special.2011.08.01

Robin Rivello says a burro's feet should be cleaned and cared for every six to eight weeks.

VOA: special.2010.02.16