I'm sorry but the food was late and it was cold when it got here. I don't think I want to pay.
真抱歉饭菜上晚了,而且它上桌时已经变冷了,所以我不想为此付账。
Sometimes the secrecy goes to such an extent that the whole nature of the research cannot be mentioned.
有时,保密竟达到了这样的程度,即连研究工作的整个性质都不准提及。