vi.
不见，消失，消逝，失踪：
She disappeared down the corridor.
她消失在走廊尽头。
She turned down a side street and then disappeared.
她拐入一条小街然后就消失了。
不复存在，不再使用；绝迹，灭绝；渐渐结束：
One by one his symptoms disappeared.
他的症状一个一个地消失了。
Those beautiful birds are fast disappearing.
那些美丽的飞鸟正