one thing which, one person who

a pair

one on / versus one

incorrect

strange

asymmetrical

inappropriate

oppose

two person always seen together in public

one's whose words or stance differ on another occasion or sentence

situation does not look good

The economic negotiation or activity between developing countries (south) and developed countries (north).

oppose

opposition

opponent

opposition party

one who does not speak from its heart

hypocritical; double standard

Composing poems and couplets

seems wrong (spoken)

singing something that is opposite from one's counterpart, it means to promote a different idea

one on one; one player vs one player

Ground to ground, surface to surface

Ground to air; surface to air

Large Hadron Collider

a perfect match; born to be together; made for one another [written and colloquial]

a large pair of nipples [colloquial]

face

sorry

right or not