Peclet number
[化] 沛克莱数
🧩 词语组成解析
🗣️ 情景例句
He and my Grandpa both went there.
他和我爷爷都曾在那儿读书。
If it were not for hope, the heart would break.
人是靠希望活著的。
I'll be about half an hour late.
我大概要慢半个小时。