1、[C] (pl feet or, in informal use and attributively, 用於口语或作定语时, 亦作 foot) (abbr 缩写 ft) measure of length: 12 inches (长度单位)英尺(12英寸): We're flying at 35000 feet. 我们飞行的高度是35000英尺. * `How tall are you?'`Five foot nine', ie five feet and nine inches. ‘你身高多少?’‘五英尺九英寸.’ *
2、 [attrib 作定语] a 6-foot high wall 6英尺高的墙.
当用-连写的时候,就不用复数形式,如
a fifteen-foot-tall building
a three-year-old boy
foot是单数 feet 是复数
feet 是foot的复数形式