这些名词均有“进攻、侵略”之意。
aggression ：词义宽泛，既可指武装入侵别国领土，又可指文化、经济等方面的侵略。侧重敌意行动和征服的企图。
- unprovoked military aggression
无端军事侵犯
invasion ：多指具体的侵入或侵犯别国领土，也可用于指抽象事件。
- the German invasion of Poland in 1939
德国于1939年对波兰的侵略 - The actress described the photographs of her as an invasion of privacy.
那位女演员认为她的这些照片是对隐私权的侵犯。
assault ：主要指突然而猛烈的进攻。
- An assault on the capital was launched in the early hours of the morning.
凌晨时分向首都发起了攻击。
attack ：普通用词，含义广，指事先不发警告，主动地向对方发起武力进攻或对言论等进行抨击。
- a series of racist attacks
一连串的种族袭击行为 - The patrol came under attack from all sides.
逻队受到四面八方的攻击。 - The school has come under attack for failing to encourage bright pupils.
这所学校因未能鼓励聪明学生而受到非难。
offensive ：多指进攻的态势，常指大规模的协同军事行动。
- Its latest military offensive against rebel forces is aimed at reopening important trade routes.
它对叛军的最新一轮军事进攻旨在重新打开重要的贸易通道。
