to hide evidence of one’s actions
隐藏一个人行为的证据 (yǐnɡɡài yīgè rén xíngwéi de zhèngjù)
"Hackers often cover their tracks after breaking into systems."
"黑客在进入系统后常常掩盖他们的痕迹。" (Hēikè zài jìnrù xìtǒnɡ hòu chánɡchán **yǐnɡɡài tāmen de hénjì**.)
to approach the last possible moment before a deadline
to be fair and positive in difficult situations
to test the limits or performance of an AI system
A brief look or summary of something
to avoid making a decision or choice
to gradually become less strong or intense