1.invade的基本意思是“侵犯”“侵略”“涌入”,可指派军队侵略某个国家,侵犯某人的权利,病毒、病菌侵入人体或大批人涌向或涌入某地等。强调明显地侵权,并带有敌意或伤害后果。
2.invade是及物动词,接名词或代词作宾语,可用于被动结构。

用作及物动词
▲S+～+n./pron.
He ordered the army to invade the country at dawn.他命令军队拂晓侵入该国。
Hilter invaded Poland in 1939.希特勒于1939年入侵波兰。
Tom claimed that the newspaper reporters were invading his privacy.汤姆声称,报社记者侵犯了他的隐私权。
I don't want to invade your private life unnecessarily.我不想过多地干涉你的私生活。
The motorbikes invaded the calm of the summer afternoon.摩托车的声响惊扰了夏日下午的宁静。
◇ 用于be ～ed结构
These countries have been invaded.这些国家遭到了侵略。
The diseased tissue can be easily invaded by these microorganisms.有病的组织容易被微生物侵袭。
His mind is invaded by worry and anxiety.他的心里充满焦虑。
Italy is invaded by tourists from all parts of Europe.欧洲各地的旅游者纷纷涌入意大利。