primary
Definition
Of chief importance; first in order, time, or development.
中文 最重要的；在顺序、时间或发展中最先的。
Example
"Clean water is a primary necessity for survival."
Of chief importance; first in order, time, or development.
中文 最重要的；在顺序、时间或发展中最先的。
"Clean water is a primary necessity for survival."