Diffusion donstant
[化] 扩散常数
🧩 词语组成解析
🗣️ 情景例句
Can't you finish it tomorrow?
你明天完成它不行吗
I'm not rich. I wish I didn't have to pay the fine.
我不是富有人家，但愿不必交罚款。
Last year was a bad year for the company. There was a big fall in sales.
去年公司不景气。销售额骤减。