n a search for an alternative that meets cognitive criteria
n the act of searching for something
v make a search (for)
v search the trail of (game)
v bark with prolonged noises, of dogs
v seek alms, as for religious purposes
v express the need or desire for; ask for
n. 过关模式（游戏用语）；任务道具（游戏用语）；远征；中世纪参加远征的骑士（quest的复数）