部队专升本大学英语：四级高频词汇：invade

　　3. invade v. 侵入，侵略，侵袭

　　Wipe out any enemy who dares to invade our country.

　　消灭任何胆敢来犯的敌人。

　　The town was invaded by reporters.

　　这个城市涌进了大批记者。

　　4. acid n. 酸，酸性物质 adj. 酸的;尖刻的

　　acid rain 酸雨 acid test 酸性测试 acid jazz 迷幻爵士乐

　　An acid solution is concentrated when it has very much acid in it.

　　当酸溶液里含有很多酸时,它就被浓缩了。

　　She uttered the phrase with acid sarcasm.

　　她以辛辣的讽刺口吻说这个词。