于的英語翻譯：

for; of; to; when

自衛(wèi)的英語翻譯：

self-defence; self-protection
【法】 private defence; se defendendo; self-defense; self-preservation
self-protection

抗辯的英語翻譯：

contradict; counterplea; demur; demurrer; plea
【法】 ad respondendum; counterplea; counterplead; defence; demur; exceptio
exception; plea; plead; pleading; remonstrance; remonstrate; traverse