单词	operating costs
释义	请查阅词条：sunk costs
随便看	bowl sb over bowl somebody over bowl someone out bowl someone over bowl someone over bowlss bowly bowman Bowman's capsule bowmen bow-net bow of promise bow one's knee bow out bow out bow out (of) bow out of bows bow saw bowser bowsers bowshot bowshots bowsie bowsies 菜青虫是哪来的? 菟丝子为什么又叫"寄生虫"? 菟丝子是“寄生虫"吗菟丝子有什么种植方法菠菜为什么被称为“菜中之王"? 菠菜和豆腐为什么不能一起煮菠萝蘸盐水菱形断块萤火虫为什么会一闪一闪的发光? 萤火虫为什么会发光 Prüfgewichte Prüfgitter Prüfglas Prüfgröße Prüfhahn Prüfhalle Prüfhilfsrelais Prüfhäufigkeit Prüfinstrument Prüfintervall