to lose consciousnesseasily swooned at the sight of blood
easily swooned at the sight of blood
blacked out, conked (out), fainted, keeled (over), passed out
broke down, collapsedzonked (out)
came around, came round, came to, revived
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。