词汇	join irreducible element
释义	join irreducible element 并不可约元
随便看	department bank department based computation method department behavior department billing service department border relations department boundaries department branch store department budget department budget establishment department budget expenditureevaluation department budgeting department budget reform department burden rate department certification department chair department chairman Department Chairman /Department Head department chief department clerk department closing department code department code entry department/college office of university department concerned department control type