unbend
动词 unbend:
straighten up or out; make straight
同义词:straighten
unfasten, as a sail, from a spar or a stay
free from flexure
make less tight
同义词:relax
become less tense, rest, or take one's ease
同义词:relax, loosen up, unwind, decompress, slow down
release from mental strain, tension, or formality