Cis-polymer
[化] 顺式构型聚合物
🧩 词语组成解析
[计] 中央信息系统, 字符指令系统, 计算机信息服务, 用户信息系统
🗣️ 情景例句
The old couple has already been married for fifty years.
那对老夫妻结婚已经 50 年了。
I'm pressed for time.
我赶时间。
Good, we've been waiting a long time.
好，我们已经等好久啦。