Ln
abbr. 自然对数（Napierian Logarithm）；液态氮（Liquid Nitrogen）
🗣️ 情景例句
Nat's not as lucky as I am, Robbie.
Nat不像我这样幸运， Robbie。
Readiness is all.
有备无患。
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。