you do not have to say anything but it may harm your defense if you do not mention when questioned something which you later rely on in court anything you do say will be given in evidence
你不必说什么，但如果你在被询问时不提及你以后在法庭上所依赖的东西，可能会损害你的辩护。你所说的任何话都将作为证据
以上为机器翻译结果，长、整句建议使用 人工翻译 。