n.数字,数量,号码,编号 v.标号,总计,把…算作
And a number of African countries, too, are slipping through the net.
并且一些非洲国家也被漏掉了。
There must be any number of people in my position.
一定有很多人处在我这种境况。
Accidents are still the number one cause of premature death for Americans.
交通事故仍然是造成美国人过早死亡的头号因素。