Picoseconds
(picosecond 的复数) [计] 微微秒
🗣️ 情景例句
Are we ready to go?
我们可以开始了吗？
Thank you for sending it to me.
谢谢你把它送给我。
What was the population of the more developed countries in 1950?
1950年较发达国家的人口是多少？