The struggle must be waged on just grounds, to our advantage, and with restraint.

斗争必须是有理、有利、有节的。

China took justified, firm and proportionate counter-measures to resolutely defend national sovereignty, security and development interests, to firmly uphold the norms of international relations and international fairness and justice.

中国开展有理有利有节斗争，坚定维护国家主权、安全、发展利益，坚定维护国际关系准则和国际公平正义。

来源：同文世纪翻译，转载请注明出处！