正常

regular / normal / ordinary

first month of the lunar year

straight / upright / proper / main / principal / to correct / to rectify / exactly / just (at that time) / right (in that place) / (math.) positive

surname Chang

always / ever / often / frequently / common / general / constant

abnormal / irregular

normalization (of diplomatic relations etc)

normal operation / proper functioning

abnormal

normal cost (accountancy)

microbiome / microbiota

abnormal state