sprat
/spræt; spræt/ n
1 small edible European sea-fish of the herring family 西鲱（欧洲产的可食小海鱼）.
2 (idm 习语) a ,sprat to catch a `mackerel (saying 谚) relatively small or unimportant thing that is offered or sacrificed in the hope of getting sth much bigger or better 用小鱼钓大鱼; 吃小亏占大便宜.