a young eel, especially when undergoing mass migration upriver from the sea 幼鳗(尤指从海中向河上游迁游时间的幼鳗)
语源
mid 17th cent.: variant of dialect eel-fare 'the passage of young eels up a river', also 'a brood of young eels', from eel + fare in its original sense 'a journey'