The boss caught me on the wrong foot when he asked where I was yesterday when I should have been at work.
老板问我昨天上班时间到哪里去了,这使我措手不及。
The waiter footed up our bill.
服务员结算了我们的账单。
The expenses foot up to 50 yuan .
费用共计五十元。
His debts foot up to a huge sum.
他欠的债加起来是一笔巨款。