已签名的买主同意支付5,000英镑的订金。The undersigned buyers agree to pay a 5,000 pound deposit.可退还订金到店即可退还。A refundable deposit is payable on arrival.我们已支付了房款的5%作为订金。We've put down a 5% deposit on the house....

“订金”的英语可以翻译为：subscription ...