常見例句雙語例句Fallen leaf observe commitments to root, heroic undertaking to have " turn mud into to protect, spend even more spring ";落葉守住了對樹根的允許，於是有了“化作春泥更護花”的壯擧；Mathematics pedagogy is a heroic undertaking and its development level is the important signal of the mathematics education.建立數(shù)學教育學是一項宏偉的事業(yè)。 數(shù)學教育學研究方法的發(fā)展水平是數(shù)學教育學科發(fā)展水平的重要標志。權(quán)威例句This was a pretty heroic undertaking, given that almost all of Palestine's population was Arab at that time.ECONOMIST: Britain’s mandate in PalestineIndeed, the Jewish presence both within and beyond the 1949 armistice lines is so unacceptable that murdering Jews at every opportunity is perceived as an acceptable and indeed heroic undertaking.CENTERFORSECURITYPOLICY: Appeasing child killers 返回 heroic undertaking