A fundamental unit of length in both the U.S. Customary System and the British Imperial System, equal to3 feet, or36 inches(0.9144 meter).是什么意思_A fundamental unit of length in both the U.S. Customary System and the British Imperial System, equal to3 feet, or36 inches(0.9144 meter).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句