There could be many reasons and he was not going to waste time speculating on them.原因可能有很多，他不打算浪费时间对此妄加猜测。Browning's prediction is no better than a wild guess.勃朗宁的预测不过是妄加猜测而已。I do not pretend to criticize, but ...我并不想妄加批评，不过… He received criticism from second-guessers in the media.他遭到了妄加猜测的媒体人的批评。