incumbent
adj
1 [pred 作表語]
~ on/upon sb (fml 文) necessary as part of sb's duty 有責任; 有義務; 必須履行
It is incumbent upon all users of this equipment to familiarize themselves with the safety procedure. 凡使用這種設備的人都應熟悉安全程序.
2 [usu attrib 通常作定語]
holding the specified official position; current 現任的; 在職的
the incumbent president 現任總裁. incumbent, n person holding an official position, esp in the church 現任者, 在職者(尤指神職)
the present incumbent of the White House, ie the US President 現任美國總統.