migratory
	英 ['maɪgrət(ə)rɪ; maɪ'greɪt(ə)rɪ]
美['maɪɡrətɔri]
	    
    英英释意
	
	- 1. used of animals that move seasonally;
 - "migratory birds"
 
- 2. habitually moving from place to place especially in search of seasonal work;
 - "appalled by the social conditions of migrant life"
 - "migratory workers"