Meanings

modulo N check

do not despair because you are the last to take your pick

bulbil (esp. of a Japanese yam)

complementary set

direction cosine

echo

earnestly

a virtuous family enjoys long prosperity

aftereffect

one's remaining years

Buyeo (ancient kingdom bordering China in the north of Korea)

to feign composure

being concentrated on one thing

unable to find adequate words (e.g. to express feelings)

to give someone space

to have excess momentum (from going too fast, using too much force, etc.)

hard to replace (with other person)

ober dictum

commentary

law of quadratic reciprocity