n.(1917年以前的)俄罗斯帝国;现俄罗斯;俄罗斯联邦;
例句:
TheThey executed Russia's imperial family in 1918.
他们1918年处死了俄国沙皇皇族。
" A new phase in the history of Russia begins "
“ 俄国历史的新阶段开始了 ”
After a year and a half of war Russia was defeated.
一年半的战争之后俄国被击败了.