Diffusion length
[电] 扩散长度
🧩 词语组成解析
🗣️ 情景例句
Good afternoon. What's the trouble?
下午好。有什么不舒服吗？
I'm not sure what time I'm coming back.
我不肯定我什么时间回来。
The big clock which used to strike the hours day and night was damaged many years ago and has been silent ever since.
教堂的钟很大，以前不分昼夜打点报时，但很多年前遭到毁坏，从此便无声无息了。