not necessary to; don't have to

Expresses gratitude or relief for something that happened in the past, a choice made, etc.

If only ~

It's good / okay to... / is fine

(religion) lance that was used to pierce Jesus Christ after his crucifixion; the Lance of Longinus

a holy war

living person or people, the living / living thing

(mathematics) polynomial / (mathematics) integral expression

defined style; standard

Alternative form of 清新