c. 1400, perhaps a causative or frequentative form of Middle English suken "to suck" (see suck), but OED suggests instead a back-formation from suckling (though this word is attested only from mid-15c.). Related: Suckled; suckling.
双语例句
1. So good, ask you to drink the strong tea that did not suckle!
那么好吧, 就请你喝没奶的浓茶吧!
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2. Since the platypus lacks nipples, the pups suckle milk from the mother's abdominal skin.
因为鸭嘴兽没有**, 幼兽在母兽腹部舔食乳汁.
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3. It is like a cow kicking a grown calf that wants to suckle.