纸上争论 (紙上爭論) zhǐ shàng zhēnglùn

zhǐ shàng zhēnglùn phrase paper warfare
Domain: Literary Chinese 文言文 , Subdomain: , Concept:
Notes: Collocation (Amies 2021 tr.; see also Mathews 1931 '紙上爭論', p. 47)