They will concentrate on teaching the basics of reading, writing and arithmetic.他們將集中教授閱讀、寫(xiě)作和算術(shù)基礎(chǔ)知識(shí)。They should concentrate on rejuvenating the existing vegetation, like grass and shrubs.他們應(yīng)該側(cè)重于修整現(xiàn)有的綠化植被，比如草和灌木。The group...