quill pen
plural of staff system
plural of ass juice
A visualization of the progress of learning as function of experience. / (by extension) A measure of how much there is to learn in a restricted amount of time
A pen (writing instrument) made from a quill (a wing or tail feather of a large bird).
彼女は羽根ペンをインク壺に浸して手紙を書き始めた。
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DiQt(ディクト)
無料
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