?? 詞語組成解析
common
['kɑm?n]
adj. 普通的;通俗的;[數學]公共的;共有的;
n. [法律]（對土地、水域的）共有權;公共用地;普通;平民;
n. 頸動脈\\na. 頸動脈的
??? 情景例句
Good-bye, Mr. Carlson. Thanks.
再見， Carlson先生。謝謝。
The post office is two blocks straight ahead, You can't miss it.
那郵局一直向前走過兩條街，很好找。
No, I don't think we have been.
不，我想沒有。