Ln
abbr. 自然对数（Napierian Logarithm）；液态氮（Liquid Nitrogen）
🗣️ 情景例句
Boswell's a powerful speaker.
Boswell是个有辩才的演说家。
A standard one. Replacement during the first year if all rules for proper use have been followed.
有一个原则，如果在一年内符合各种使用规定，就可更换。
Fine.let's get together again next week.
好吧，那就下周再聚会了。