| 单词 | 即时 |
| 释义 | 〔derivative〕The instantaneous rate of change of a function with respect to its variable.函数随其变量的即时变化率〔spot〕a spot sale.即时结清的买卖〔spot〕Of, relating to, or being a market in which payment or delivery is immediate:现场交易的：货到时付的或现付的，交易等当时支付现金的与市场相关的或市场的，在此种市场中现金支付和交割即时进行：〔available〕kept a fire extinguisher available at all times.任何时候都要放置即时可用的灭火器 |
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