num.十五
He has fifteen workers in his employ. 他雇佣的工人有十五名。
Fifteen separate republics comprised the Soviet Union. 苏联由十五个加盟共和国组成。
I caught six trout in fifteen minutes. 我在十五分钟内钓到了六条鳟鱼。
Most students in this class are fifteen. 这个班的大多数孩子都十五岁。
num.第十五
