call attention to引起对…的注意
例句:We must call your attention to this problem.
我们必须引起你对这问题的注意。
2.The World Health Organization says the disease is responsible for one in five childhood deaths there.
be responsible for为...负责,形成...的原因
例句:I will be responsible for anything that happens to them.
我将为发生在他们身上的任何事情负责。
3.Malaria kills about two hundred thousand children in Africa every year, an average of one every thirty seconds.
an average of平均有(跟数词)
例句:An average of ten students are absent each day.
每天平均有10个学生缺课。