upstreamers
(astronomy) Abbreviation of pulsar. / (aviation) Initialism of primary surveillance radar. / Initialism of police service representative, an LAPD dispatcher. / Initialism of pre-sentence report.
plural of dead duck
One who or that which secures.
plural of upstreamer
川をさかのぼる人々はボランティアの作業班を組織し、魚が産卵を始める前に倒木やごみを取り除いて小川の自然な流れを回復させた。
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