failure有复数.
failure当失败讲的话,都是说一次失败:a failure
failure当故障、失效讲时,就有复数了.
There are several failures in your program.
你的程序中有几处故障.
There were also several accidents mainly caused by engine failures on take-off...
还有几次事故主要是起飞时引擎出现故障造成的.
failure有复数.
failure当失败讲的话,都是说一次失败:a failure
failure当故障、失效讲时,就有复数了.
There are several failures in your program.
你的程序中有几处故障.
There were also several accidents mainly caused by engine failures on take-off...
还有几次事故主要是起飞时引擎出现故障造成的.