Maintenance staff oiled the conveyor belt so the shipping line would stop squeaking.

維修人員替輸送帶上了油，讓出貨生產線不再吱吱作響。

Please oil the hinges on the conference room door before the client meeting.

客戶會議前，請先替會議室門的鉸鏈上油。

The hotel chef oils each baking tray before preparing breakfast for the tour group.

飯店主廚在為旅行團準備早餐前，會先在每個烤盤上塗油。