Plf
abbr. pounds per linear foot 磅/（线）英尺
🗣️ 情景例句
I can't wait to tell Richard!
我简直迫不及待想告诉Richard！
To send mail(a letter)
邮寄邮件
In this way, we have learned all that we know of the laws of astronomy,
例如，用这种方法，我们完全掌握了天文学的规律。