Constantane
[化] 康铜
🗣️ 情景例句
He's stepped out of the office for a little while.
他离开办公室刚一会儿。
Discontent is the first step in progress.
不知足是前进中的第一步。
In the 1970s, computers were common enough, but only in big business, government departments, and large organizations.
在70年代，计算机已经相当普及了，但只用在大公司，政府部门和大的组织之中，