Tā shì gè zài dàshìdàfēi wèntí shàng lìchǎng jiāndìng de rén.
He's someone who stands firm on questions of principle.
Tips
usage
Structure: 大X大Y (big X big Y) pairs 是 ('right') with 非 ('wrong'). Reserved for serious moral/political issues — don't use for everyday disagreements. Often preceded by 在...面前 ('when facing') or 在...问题上 ('on questions of').
