Quantum length
[化] 德布罗意热波长
🧩 词语组成解析
🗣️ 情景例句
I am in the 7th grade.
我是七年级。
Don't cast out the foul water till you bring in the clean.
清水未来，莫泼赃水。
He has often described to me how he picked up a masterpiece for a mere $50.
他多次向我详细讲他如何只花50英镑便买到一位名家的杰作。