copper pyrites
chalcopyrite
One who photostats.
(obsolete) The act of filling up. / (obsolete) fullness
(computing) A key that may be pressed to delete something (such as text or files) from a computer. The key also erase text from left to right, unlike the backspace key.
地質学者は顕微鏡で黄銅鉱の試料を注意深く観察した。
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DiQt
Free
★★★★★★★★★★
