additional
additional — adjective
1. describing something that comes on top of what you already have, expected, or fi
describing something that comes on top of what you already have, expected, or first talked about, increasing the total amount or number.
Mei hired two additional staff members to handle the busy summer season.
additional + plural countable noun
Passengers must pay an additional fee for each suitcase over 20 kilos.
additional + singular countable noun
The doctor asked Mr. Lin to come back for additional blood tests next week.
There is no additional charge for using the hotel pool or the gym.
Xiomara took on an additional job at the bakery to save for college.
- extra
more everyday and flexible; works both before a noun and after 'be' (the cost is extra)
- further
often used for more steps, action, or information rather than physical things; slightly more formal
- supplementary
formal; suggests something added to support or complete a main item, e.g. supplementary materials
- added
stresses that something has been put on top of what was there before; common in 'added cost / added bonus'
文法句型
additional + noun
用法筆記
Almost always used before a noun (attributive). Cannot stand alone after a linking verb — say 'the cost is extra', not 'the cost is additional'.