birdwatchers
(algebra) A variable (usually x, y or z) whose value is to be found. / Any thing, place, or situation about which nothing is known; an unknown fact or piece of information.
A surname from Old French. / A male given name transferred from the surname in the 19th century.
Alternative form of dihydroxyanthraquinone
plural of birdwatcher
毎週末、野鳥観察者たちは渡り鳥の種類を記録するために湿地に集まる。
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DiQt
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