three years of age, three years old

(idiomatic) whether you like or it or not, for better or for worse

twenty years old

a motif in Chinese art featuring the "three friends of winter": pine (or daffodil), bamboo, and plum blossom

to be in relation to, to be relevant to, to be involved in; to be involved in a negative way: to meddle, to interfere; to have a substantial effect on something, to endanger something; to get hung up on something

pray for long live His Majesty the Emperor of Japan / one of battle cry when Banzai charge