very rarely
非常罕见 (feichang hanjian)
"I only see him once in a blue moon."
"我很少见到他。" (wo hen shao jiandao ta)
a situation where all parties benefit
something that reminds you of an earlier time
the ability to imagine and plan the future clearly
to improvise or decide as you go rather than following a fix...
to remain calm in difficult or stressful situations
to be very close friends