1.officiate v.行使
    【商務(wù)用語】officiate as host 作為東道主
    2.on-the-job adj.在職的
    【商務(wù)用語】on-the-job training 在職培訓(xùn)
    3.opening n.開，空缺 adj.開始的
    【商務(wù)用語】opening bank 開證銀行
    opening quotation 開市行情，開市價
    opening sales 大減價
    4.operation n.運(yùn)轉(zhuǎn)，操作，業(yè)務(wù)
    【商務(wù)用語】operation department 運(yùn)營部門
    operation manager 業(yè)務(wù)經(jīng)理
    operation sheet 操作說明書
    5.optimal adj.佳的，理想的
    【商務(wù)用語】optimal decision 優(yōu)方案
    optimal output 適宜的產(chǎn)出量
    optimal price policy 適當(dāng)?shù)膬r格政策