打笔墨官司dǎ bǐ mò guān sipolemics on paper;engage in written polemics (/a battle of words)
❍ 不要把学术上不同学派的自由争论当作～。Don’t regard free contention among different schools in the sphere of learning as polemics on paper. 打笔墨官司da bi mo guan siengage in written polemics |