4th graders
(geometry) a theorem stating that if a set of points P_i lying on a line is isometrically mapped to points P_i' on a different line, then the midpoints of the segments P_iP_i' also lie on a line.
plural of 4th grader
A surname.
plural of sexploit
4年生の生徒たちは再生可能エネルギーに関するサイエンスフェアのプロジェクトを発表しました。
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DiQt
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