two-leaf door; 两扇门
two thousand people; 两千人
say a few words; 说两句
for a couple of days; 过两天
two liang of tea 二两茶叶
both sides; 两面
mutually exclusive; irreconcilable 势不两立
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)