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
I bet you can make it.
我敢打赌你一定能做到。
You may know the horse by his harness.
欲知马如何，可看套马索。
and so the tools of long ago have remained when even the bones of the men who made them have disappeared without trace.
因此，尽管制造这些工具的人的骨头早已荡然无存，但远古时代的石头工具却保存了下来。