一线城市用英语怎么说？ 先认识一个单词：tier， 它表示one of several layers or levels（多层、多层次中的）一层， 比如：1、We sat in one of the upper tiers of the football stands.我们坐在足球场看台的上层区。

2、I don't understand why you think we need yet another tier of management.

我不明白你为什么认为我们还需要另一层管理。

把该词用来修饰“城市”，就有：一线城市： first-tier city ，二线城市： second-tier city

三线城市：third-tier city ，例如：①Shanghai and Beijing are among the first tier cities in China.

上海和北京在中国一线城市之列。

②Foshan turned into a new first-tier city this year.

佛山今年跃居新一线大城市。

大城市除了big city还能怎么说：

1、major city

例如： In every major city there are more vacant buildings than there are homeless people.

各大城市里空置的楼房都比无家可归的人多。

2、large city

例如： In a large city you're almost certain to find a physician with whom you are compatible and feel comfortable.

在大城市，几乎肯定能找到一个和你意气相投、让你觉得舒心的心灵抚慰者。

3、metropolis

例如： In a large city you're almost certain to find a physician with whom you are compatible and feel comfortable.

在大城市，几乎肯定能找到一个和你意气相投、让你觉得舒心的心灵抚慰者。