出没: appear and disappear; come and go; haunt 短语和例子川西的王朗自然保护区是大熊猫出没的地方。 the wanglang preserve in western sichuan is the haunt of the giant panda. 据说那座老宅子有鬼魂出没。 people say ghosts haunt that old
进退出没: withdraw attack or take cover sense of propriety
出没无常: appear and disappear without regularity; appear and disappear at intervals; appear and disappear unexpectedly; appear at intervals; appear unpredictably; come and go unpredictably; may app
