kept secret or very confidential
保密或非常机密 (baomi huo feichang jimi)
"The project is still hush-hush, so don’t mention it."
"该项目仍然保密，所以不要提到它。" (Gai xiangmu rengran hush-hush, suoyi buyao tidao ta.)
to stop doing something bad or addictive
to arrange people or things in order or to schedule somethin...
to clearly describe an inspiring future goal
to continue working even when you are tired or out of energy
to be so surprised that you cannot speak
to make something possible or likely to happen later
