用英语解释以下词语,1,boat country;2,FOB;3,specialization 4,a sight dr

1 ?
2 Free on Board
3 Foreign trade enterprise introduction the commonly used glossary
4 required sight drawee sees immediately after the payment of the draft. There is no indication of the date of payment by sight draft drawn also considered
Sight bill: Foreign trade business division commonly used words
Drafts payable at sight draft bills, etc
The notes payable
5 Days after Acceptance