题目内容：

in case of an emergency 和in case of emergency 都可以用吗?in case of 后接名词时有没有单数名词前不用冠词的说法?接名词有特别的规定吗?

优质解答

对,有这种说法.in case of后直接加名词或动名词.例如：For Use Only in Case of Fire灭火专用Sandbag the doorway in case of flooding在门口堆上沙袋以防洪水in case of trouble,call 911; I have money,just in ca...