its a big city信息详情
这是个大城市
its a big───这是个大问题
a big city───大城市
big city───n.大城市; 都
its big───它很大
its so big───太大了
its too big───太大了
its a───abbr.（英国）独立电视管理局（IndependentTelevisionAuthority）；（英国）工业运输协会（IndustrialTransportAssociation）；（美国）工业与贸易管理局（IndustryandTradeAdministration）；国际纺织品协定（InternationalTextileAgreement）；入门教学字母（InitialTeachingAlphabet）；n.(Ita)人名；(阿拉伯)伊塔
a big───一个大的
big a───比加（土耳其城镇）；[医]blood group A A血型
This week Chicago became the first big city to abandon its plans for a city-wide network.───本周，在众多大型城市中，芝加哥首先终止了覆盖全城的无线网络计划。
from the cynical anonymity of a big city, we luxuriated in its happy personalism.───从大城市的愤世嫉俗的匿名性中， 我们奢侈地享受其快乐的个人主义。
Big fast-food chains in New York City have started to obey a first of its kind rule, requiring them to post calorie counts right on the menu.───纽约市的大型快餐连锁店已经开始遵守史无前例的规定，也就是在菜单上标明卡路里计数。