beatern.
英 'biːtə | 美 'bitɚ
中文n. 搅拌器；[纸] 打浆机；助猎者
词根词源
beater (n.)mid-14c., "an implement for beating;" mid-15c., "a person who punishes" (c. 1200 as a surname); agent noun from beat (v.). Of various mechanical devices that "beat" in some sense from early 17c. Meaning "one who rouses game" is from 1825. Slang meaning "old car" is from c. 1980.
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