According to the principles of infinitesimal calculus,a new method on how to ratiocinate the arbitrary quadrilaterals area was put forward.是什么意思_According to the principles of infinitesimal calculus,a new method on how to ratiocinate the arbitrary quadrilaterals area was put forward.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句