to waste time on a topic that has already been resolved
在已经解决的问题上浪费时间 (zai yijing jiejue de wenti shang langfei shijian)
"Stop beating a dead horse; the decision is final."
"别再纠结这个问题了，决定已经定了。" (bie zai jiu jie zhege wenti le jueding yijing ding le)
to go out and enjoy oneself in a lively and extravagant way
someone who has influence in the selection or appointment of...
to be accountable for something you did or are in charge of.
to become aware or informed about something
to survive, one must adjust to the new conditions
liable to be misused or exploited
