They did not want to give evidence for fear of reprisals.
他们因为害怕报复而不想作证。
For example, in order to give self the "evidence of being innocent", you can talk to the old man, and record the conversation, or record the process on video with your cell phone.
例如，为了给自己留下“清白的证据”，你可以与老人交谈并记录谈话，或是用手机拍下全程。
Moreover this can also give scientific evidence for effects of rare earths on human health.
亦可为阐明稀土对人体健康的影响提供科学依据。
Then, be ready to give solid evidence for why your performance merits more money.
然后，准备有力的证据来说明为什么你的工作表现值得加薪。
Then, be ready to give solid evidence for why your performance merits more money.
然后，准备有力的证据来说明为什么你的工作表现值得加薪。
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