Prandtl number
[化] 普朗特数
🧩 词语组成解析
🗣️ 情景例句
Call me John.
叫我， John。
A disease known is half cured.
病情确诊断，治病好一半。
Usually, he catches the number 11 bus to work, but sometimes he goes by train.
通常他乘11路公共汽车去上班，不过他有时乘火车去。