n. 摘录( extract的名词复数 ); 引用; 提炼物; 浓缩物

v. 提取( extract的第三人称单数 ); （费力地）拔出; 选取; 获得

n a solution obtained by steeping or soaking a substance (usually in water)

n a passage selected from a larger work

v remove, usually with some force or effort; also used in an abstract sense

v get despite difficulties or obstacles

v deduce (a principle) or construe (a meaning)

v extract by the process of distillation

v separate (a metal) from an ore

v obtain from a substance, as by mechanical action

v take out of a literary work in order to cite or copy

v calculate the root of a number