英語「grade」の意味・使い方・読み方 | Weblio英和辞書 grade (third-person singular simple present grades, present participle grading, simple past and past participle graded) (chiefly Canada, US) To assign scores to the components of an academic test, or to overall academic performance
英語「up‐grade」の意味・使い方・読み方 | Weblio英和辞書 To improve the ease of using a calendar and up grade its usefulness by making it easy to arrange an optional number of sheets of a calendar paper for superposition