ready to be used if needed 待机的；备用的◆Leave the PC in standby mode. 让个人电脑处於待机模式。
() used to describe an arrangement by which a country can borrow extra money from the International Monetary Fund in an emergency 备用协定的（紧急情况下一国可从国际货币基金组织拆借额外资金的协议）◆a $16 billion standby agreement with the IMF 与国际货币基金组织签订的 160 亿元的备用信贷协定
a standby ticket for a flight, the theatre, etc. cannot be bought in advance and is only available a very short time before the plane leaves or the performance starts （在飞机起飞或剧院演出之前出售的）剩余票的◆a standby ticket to New York 飞往纽约的余票