the expulsion of a fetus from the womb before it is able to survive independently, especially spontaneously or as the result of accident 流产 his wife had a miscarriage. 他的妻子流产了。 [mass noun]some pregnancies result in miscarriage. 有些怀孕会流产。
an unsuccessful outcome of something planned (计划等的)失败,流产 the miscarriage of the project. 项目的失败。