Nanovolt
[电] 千分之一微伏
🗣️ 情景例句
that you care about us.
关心我们大家。
Once an opportunity slips away, it is gone for good.
机会一旦错过，永远不会再来。
The American president who fought for the freedom of slaves in the USA.
为美国奴隶的自由而战的美国总统。