Higgins contactor
[化] 希金斯接触器(一种动态离子交换柱)
🧩 词语组成解析
n. 希金斯（姓氏）
n. 接触器\\n[化] 接触器
🗣️ 情景例句
If you don't know a person's last name, use 'ma'am' or 'sir'.
如果你不知道一人的姓， 你应称呼他为 'ma'am' 或 'sir' 。
My brother wants to learn how to play the piano.
我的兄弟要去学弹钢琴。
Yu Yan and Jim were neck and neck. They both passed on their sticks at the same time.
余延和吉姆跑得一样快。