1)attention development,注意的发展2)watch the development of affairs,注意局势的发展3)development of visual selective attention,选择性注意发展4)leave things to look after them selves,对事情不够注意;忽略事情的发展5)Pay a lot of attention to your pronunciation.,多注意你的发音。6)Pay attention to your pronunciation.,注意你的发音.