17. He makes full use of Schumpeter's diaries, which is where we learnof his self-doubt; it certainly was not evident in his public manner.
他充分利用了熊彼特的日记，于此我们得知他的自我怀疑；当然在公开场合不明显。
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18. Experts at Reliable Software Technologies examined the potentially vulnerable code and were unable to learnof a way to exploit any of the conditions.
19. But the distrust and tensions could berenewed again after prosecutors learnof Diallo’s decision to go public afterweeks of remaining in protective custody.
20. Staff at the Oberhausen Sea Life Center in western Germany said in a statement they were "devastated" to learnof Paul's death when they returned to work on Tuesday.
德国西部奥伯豪森水族馆的工作人员在一份声明中称，他们在本周二上班后得知保罗去世“悲痛万分”。
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21. I didn't see any suspicious behavior at the time, and to be totally honest, I actually liked that teacher and was shocked to learn of his extracurricular activities.
22. I didn't see any suspicious behavior at the time, and to be totally honest, I actually liked that teacher and was shocked to learn of his extracurricular activities.
