firsthand information

基本解释

It's not firsthand information, so I don't believe it.
这不是第一手资料，所以我不会相信。
Still, many Western intellectuals, recoiling from the excesses of McCarthyism, and hampered by lack of firsthand information, gave the benefit of the doubt to Mao in the decade that followed.
然而，许多西方的知识分子，脱离了极端的麦卡锡主义，受困于第一手资料的匮乏，使得接下来的10年对毛的怀疑甚嚣尘上。
It can also supply the firsthand information for analysing the reason in the accident happened, and provides a greater value in dynamic system.
为分析事故发生原因提供了可靠的第一手材料。它在电力系统推广有较大的使用价值。

We have all witnessed firsthand how the free flow of information is impacting the way individuals and companies communicate and how the rules of governance are changing for entire nations.
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