bowel
n
(usu pl, except in medical use and when used attributively 除用作医学名词及修饰语外, 通常作复数)
1 part of the alimentary canal below the stomach; intestine 肠
[attrib 作定语]
a bowel complaint/disorder 腹泻[肠道疾患]
cancer of the bowel 肠癌
move one's bowels, ie defecate 大便(通便).
2 deepest or innermost part (of a place) (某处的)最深的或最靠里面的部分
in the bowels of the earth, ie deep underground 在地下深处.
I suggest that we ask users of this machine what they think about it. We can photograph them using it too. Then we can put their comments at the top of the advertisement in big print. We can bring in some humour too. People enjoy reading humorous ads.