feedern.
英 'fiːdə | 美 'fidɚ
中文n. 支线；喂食器；奶瓶；饲养员；支流
词根词源
feeder (n.)early 15c., "one who feeds (an animal);" 1560s, "one who eats;" agent noun from feed (v.). As a mechanical apparatus for conveying materials, from 1660s. Of cattle and streams, by 1790s; of roads and railroads, by 1850s.
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