make a face与make faces有区别么?

make a face是做鬼脸,
make faces是扮鬼脸.
后者更吓人了 ^)^
其实两个短语完全一样.单数第三人称也可以用make faces.如：
He always makes faces so as to make everyone laugh
你可以理解他做了一系列动作.