Peclet number
[化] 沛克莱数
🧩 词语组成解析
🗣️ 情景例句
He has a major toy buyer in Los Angeles,
他在Los Angeles有一个玩具大买主，
I've got a terrible pain in my stomach.
我的胃很痛。
The secretary worked late into the night, preparing a long speech for the president.
秘书工作到深夜，为总统准备发言稿。