passing
词形变化：
同义词：
transient | departure | death | transitory | ephemeral | short-lived | casual | cursory | leaving | leave-taking | disappearance | desertion | dying | momentary | mushroom | demise | end | fugitive | slippery | fleeting | flying | temporary | quick | superficial | pass | passage | fugacious | exit | extremely | qualifying | loss | expiration | perfunctory | going | super | release | overtaking | exceedingly |
反义词：
词义辨析：
同义参见:
mushroom
momentary
departure
death
transient
slippery
fugitive
flying
temporary
fleeting