Retentivity
n. 保持力, 记忆力, 顽磁性\\n[化] 剩余磁化强度
🗣️ 情景例句
I know that area.
我知道那地方。
Count not your chickens before they are hatched.
不要过早乐观。
No one could account for the fact that one of the boxes was extremely heavy.
其中有只箱子特别重，可谁也弄不清是怎么回事。