需要: need, demand / 需用: consumption / 受容: reception / 受用: receive and use something; experience something / 寿夭: long life and premature death (considered side by side)

Contraction of するべき.

(sometimes offensive) COVID-19

生, 活: (attaches to nouns) vigorous, lively, powerful / 幾: (attaches to nouns) implies an indeterminate amount: several, many, much, a lot