名詞 imperialism:

1. a policy of extending your rule over foreign countries
2. a political orientation that advocates imperial interests
3. any instance of aggressive extension of authority

1. Down with imperialism!
   打倒帝國(guó)主義！
2. In her talk she went into the nature of imperialism.
   她在報(bào)告中探討了帝國(guó)主義的本性。
3. The expansion of Marxism to include both Lenin's concept of imperialism as the final form of capitalism and a shift in the focus of struggle from the developed to the underdeveloped countries.
   馬克思列寧主義馬克思主義的延伸，包含了列寧的帝國(guó)主義是資本主義的最終表現(xiàn)形式的理論，并指出了斗爭(zhēng)中心從發(fā)達(dá)國(guó)家到不發(fā)達(dá)國(guó)家的轉(zhuǎn)移
4. Leaders of other republics mutter openly now about a new Russian imperialism, while former chieftains shed crocodile tears over the violation of "human rights."
   其他共和國(guó)現(xiàn)在公開(kāi)抱怨新俄羅斯帝國(guó)主義，同時(shí)以前的那些頭兒們也假惺惺地為違反“人權(quán)”一掬同情之淚。

im.pe.ri.al.ism

n.（名詞）
The policy of extending a nation`s authority by territorial acquisition or by the establishment of economic and political hegemony over other nations.
帝國(guó)主義：通過(guò)奪取領(lǐng)土或建立經(jīng)濟(jì)、政治霸權(quán)而凌駕于別國(guó)之上的政策
The system, policies, or practices of such a government.
帝制：這樣的政府的制度、政策和行為

【引伸】
impe.rialist
adj.（形容詞）
n.（名詞）
impe.rialis.tic
adj.（形容詞）
impe.rialis.tically
adv.（副詞）