看不見,失蹤,消失
Disappearance \Dis`ap*pear"ance\, n. The act of disappearing; cessation of appearance; removal from sight; vanishing. --Addison.
disappearance n 1: the act of leaving secretly or without explanation [syn: {disappearing}] [ant: {appearance}] 2: the event of passing out of sight [ant: {appearance}] 3: gradually ceasing to be visible [syn: {fade}]