book lung
(intransitive) To boast; to act in a vain manner.
A surname.
One who, or that which balks. / A person who stands on a rock or eminence to observe shoals of herring, etc., and to give notice to the men in boats which way they pass.
(arachnology) A lamellate respiratory organ found in arachnids.
研究者は顕微鏡でクモの葉板状呼吸器を注意深く観察した。
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