Even now the snow along the roadside was five or six feet deep in places.

即使现在，路边的雪有的地方有五六英尺深。

《柯林斯英汉双解大词典》

It is six feet deep.

这洞有六尺深。

youdao

The blast left a smoldering crater about six feet deep.

爆炸留下了大约6英尺深的大坑。

youdao

Six feet deep and three feet wide.

VOA: special.2010.03.25

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

Exactly 30 meters long (about 98 feet), six meters wide (20 feet) and 1.5 meters deep (5 feet), the swimming pool is the first of its kind in China.

CNN: Could this be the scariest hotel swimming pool ever?

Painter is six feet three and forty-two, with dark hair, rimless eyeglasses, and a deep voice.

NEWYORKER: Bones of Contention