first aid
词形变化：
形容词: first-aid |
同义词：
primary | chief | foremost | dominant | beginning | leading | main | before | principal | preferably | rather | ahead | maiden | sooner | original | premier | firstly | cardinal | prime | number one | preliminary | initial | fore | basic | former | fundamental | initially | at the outset | in front | in the beginning | to begin with | originator | pioneer | final | front | last | in | finally | for the first time | outset | kickoff | commencement | first gear | first of all | start | inaugural | get-go | showtime | low | offset | world-class | first base | initiative | low gear | starting time | first off | initiatory |
反义词：