betterer
One who betters, makes something better.
(biochemistry) A polymerase that catalyzes the formation of DNA from RNA; found in retroviruses.
present participle of quob
Any of several small trees having leaves that are white and downy underneath.
その改善者は週末を使って遊び場を修理し、子どもたちがより安全に遊べる場所を作った。
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DiQt
Free
★★★★★★★★★★
