van
(organic chemistry) Any of several isomeric forms of a synthetic porphyrin that has a methyl and an ethyl group on each pyrrole ring
A fan or other contrivance, such as a sieve, for winnowing grain. / A wing with which the air is beaten.
(transitive) To incompetently perform (a task); to ruin (something) through incompetent action; to botch up, to bumble. / (intransitive) To act or work incompetently; to fumble.
Dipturus laevis, one of the largest skates, native to the northwestern Atlantic
収穫の時、古い唐箕（とうみ）が唸りを上げ、風で籾殻を吹き飛ばしてきれいな小麦だけが残った。
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