[, ]the length of time that a person or system takes to react to sth 反应时间；响应时间◆We try to maintain a set response time for calls to our help desk. 对於打到服务台的电话，我们争取在一个既定的时间内回应。◆The new software has reduced response time to less than 8 seconds for most transactions. 新软件将大部分交易的反应时间缩短到 8 秒以内。