(1)积极的；建设性的

(2)推定的；推断的；法律归责的
指虽不一定是事实，但应承担法律后果。法庭出于公平考虑，常作此推定性认定。

• first domestic processing
• first fruits
• firsthand knowledge
• first heir
• first impression case
• first in, first out/FIFO
• first in payment of taxes
• First in possession is first in right.
• first in time
• First in time, first in right.
• first inventor
• first lien
• First Lord of the Admiralty
• First Lord of the Treasury
• first meeting
• first meeting of creditors
• first money in, first money out
• first mortgage
• first name
• first occupant
• first of exchange
• first offender
• first open water/FOW
• first option
• first party insurance