在听众面前发言清楚，有说服力，有力，是其中最重要的技能，不管是在一个还是成千上万听众面前。
The ability to speak clearly, persuasively, and forcefully in front of an audience – whether an audience of 1 or of thousands – is one of the most important skills anyone can develop.
会议中博斯发言说：“从总体数据来看，我们有强有力的证据证明那个电化学反应中产生了核反应。”
Dr Boss told the meeting, "taking all the data together, we have compelling evidence that nuclear reactions are stimulated by electrochemical processes."
但是选举委员会发言人Qassim al - Aboudi表示，他们没有提供有力的证据证明这一点。
But a spokesman for the commission Qassim al-Aboudi said no strong evidence had been provided.
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