glacial drift
plural of Duan
simple past tense of retread
(transitive, intransitive) To narrow, especially by application of pressure. / (of a snake) To coil around (prey) in order to asphyxiate it. / (figuratively) To limit or restrict.
(geology) An accumulation of glacial till that has been transported by moving ice, land ice, or icebergs.
新しい灌漑用水路を掘っているとき、作業員は基礎工事を難しくする厚い氷河堆積物の層に遭遇した。
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