[] a cheque that is signed but which does not have the amount of money to be paid written on it空白支票（只在支票上签名，不填写金额）◆(figurative) The board has been given a blank cheque to buy new assets.董事会得到全力支持购买新资产。SYNopen cheque [] permission or authority to do anything that you think is necessary in order to achieve a particular result（为达到某一结果的）自由行动权◆These laws do not give companies a blank cheque to pollute without paying.这些法律并未允许公司只污染而不付费。