🧩 词语组成解析
common
['kɑmən]
adj. 普通的;通俗的;[数学]公共的;共有的;
n. [法律]（对土地、水域的）共有权;公共用地;普通;平民;
elder
['eldə(r)]
n. 长者;长辈;元老;比…年长的人;
adj. 年纪较大的;资格老的;老练的;
🗣️ 情景例句
About what?
谈什么？
I have forgotten his telephone number.
我忘记了他的电话号码。
I was only five when my father had taken me abroad, and that we eighteen years ago.
我5岁那年，父亲就带我出了国，那是18年前的事了。