理直氣壯

Reason; logic; truth; to manage; to handle affairs; to tidy up; to pay attention to; inner essence; natural science; texture or grain.

Straight; to straighten; fair and reasonable; frank; straightforward; vertical; continuing motion or action; but; only; however.

gas; air; vapor; breath; vital energy; spirit; mood; manner; to annoy; to get angry

strong; robust; healthy; to strengthen; to enlarge; a man in his prime (30s-40s); name of an ethnic group.