speak the truth 为什么用speak?

speak the truth 为什么用speak? Speak and live the Truth 求助Speak and live the Truth He is ____to speak the truth. It is right to speak the truth. 到底是tell the truth,say the truth还是 speak the truth 用法区别 what cah't talk but can speak the truth? Fortune-tellers always tell the truth because they speak in What can‘t walk,but can speak the truth? what can't talk but always speak the truth?意思 “求助Speak and live the Truth Such experiences strengthen one' the people who speak it.为什么speak不用speaks呢.