at all times：任何时候，时时刻刻

e.g. The rule is that someone must be on duty at all times.

按照规定，任何时候均需有人值班。

e.g. Firemen are ready at all times for a sudden turnout.

消防队员时刻准备着紧急出动。

deliver a baby：接生婴儿

e.g. Her baby was delivered by her own doctor.

她的婴儿是由她自己的医生给接生的。

raise an objection：提出异议

e.g. None raised any objection to the agenda ?

谁对这议事日程有异议？

e.g. She won't raise an objection -- she's so meek and mild.

她不会有异议的——她一向是逆来顺受。

wait at a table：照顾客人吃饭，伺候用餐

e.g. He became a waiter; his job was to wait at table.

他做了饭馆的服务员，工作是照顾客人吃饭。