Mechanical retrieval
[计] 机器检索
🧩 词语组成解析
retrieval
[ri'tri:vəl]
n. 收回，挽回;检索;
🗣️ 情景例句
OK. I'll do as you say.
好的，照办。
Have you offered him any candy?
你给他糖果吗？
it must be known to any kind of radio astronomer in the universe.
这个频率是宇宙中任何射电天文学家都应该熟悉的。