under fire是什么意思？

under fire的音标：under fire的英式发音音标为：['ʌndə 'faiə]under fire的美式发音音标为：['ʌndɚ faɪr]...

The Belgians fell back as the infantry came under fire.步兵团受到火力攻击时比利时人向后撤退。She doffs her garb worn under fire and wears again female attire.脱我战时袍着我旧时裳.They were absolute masters of themselves under fire.他们在敌人的炮火下泰然自若....