单词：two-by-four
音标：['tu:bai,fɔ:(r)] ；
a. 宽二英寸长四英寸的, 小的, 窄的
n. 截面为英寸2乘4英寸的木材
n. 截面为英寸2乘4英寸的木材
n. a timber measuring (slightly under) 2 inches by 4 inches in cross section
词型变化：名词复数形式 : twoes-by-four