Window

英文名称：Window 中文名称：窗口／机会期
1．获得或失去一个机会的一段限制性时间；
2．进行证券交易的交割和清算的经纪行出纳部门；
3．联邦储备银行的贴现窗口。
e.g. There is now a narrowing window of opportunity for them to sell those supplies to take advantage of high international prices ahead of the U.S. soybean harvest.