Optical pumping
[电] 光激升
🧩 词语组成解析
n. 抽水, 泵送\\n[化] 抽运
🗣️ 情景例句
There has been very little progress this term.
这学期没有什么进步。
Hedges have eyes, and walls have ears.
篱笆有眼，隔墙有耳。
It often rains,sometimes quite heavily. Everything grows very quickly.
常下雨，且有时下得很大。万物生长很快。