vi.

1. （傷口等）化膿，發炎；疼痛不已
2. 仍然令人怨恨難消
   His behavior rankles with me still.

   他的行為仍然令我怨恨難消。

vt.

1. 使疼痛；使（傷口）發炎
2. 使怨恨；使痛苦

v.

1. (of a comment or fact) cause continuing annoyance or resentment.
   ▸chiefly N. Amer. annoy or irritate.
2. archaic (of a wound or sore) fester.