Grammar Note
作“母兽”解时仅用于动物，不用于人。
坝；水坝；堤坝
先理解核心含义，再看它在真实句子里的用法。
坝；水坝；堤坝
A barrier built across a river or stream to hold back or divert water, or to keep out the sea.
The farmers built a dam across the river to water their fields in summer.
农民们在河上筑了一道坝，以便夏天灌溉田地。
横跨水流的构筑物,用于拦阻部分或全部水流,通常为蓄水、引水或延缓蓄水排放以避免骤发洪水
A structure placed across a flowing body of water to stop the flow or part of the flow, generally for purposes such as retaining or diverting some of the water or retarding the release of accumulated water to avoid abrupt flooding.
雌性亲代,母亲,通常指动物繁殖中的母体
Female parent, mother, generally regarding breeding of animals.
拦截水流或阻挡海水的屏障
a barrier constructed to contain the flow of water or to keep out the sea
因建造此类构筑物而形成的水库
The water reservoir resulting from placing such a structure.
After the storm, the dam held back the flood water and protected the village.
风暴过后，大坝挡住了洪水，保护了村庄。
Engineers inspect dams in this region every year to make sure they are safe.
工程师每年检查这个地区的水坝，确保它们安全。
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作“母兽”解时仅用于动物，不用于人。
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.