triple

trio

Horse racing terms, precise predicting top three in a game(Regard of the ranking)

equally important

Double

duet

take care

emphasize

emphasis

heavy casualties

seriously injured

Ambiguity

a snow and fire blow job, an oral sex technique using alternating ice cold and hot water [written and colloquial]

serious

intensify

Even though the gift itself costs little, but the meaning of it is what really matters

heavy and thick

weight reduction

serious

severity

serious damage

Vocal quartet

many difficulties; many challenges

multiple

weightlessness

to take up great responsibilities; to be a major and significant player

Respect the teachers, and the teaching / knowledge taught by the teachers

respect

respected for virtue and talent

to be anxious and worries because of personal issues