To start with, where and when did it happen?首先，这事发生在何时何地？Well, maybe it would be easier to start with a smaller problem.那么，也许从小问题入手会更容易些。Success was assured and, at least to start with, the system operated smoothly.成功有保证...
Data recorders also pin-point mechanical faults rapidly, reducing repair times.数据记录仪还能迅速查明机械故障，减少维修次数。They plugged in their tape-recorders.他们给录音机接上了电源。Voice recorders were retrofitted into planes already in service.录音设备安...