photo是可数名词,意思是照片。它只有复数形式,photos.
photo是以o结尾的可数名词,因为是无生命物体,所以变复数词尾要加es.
I have three photos of my family.我有三张我的全家福。
This is their family photo.这是他们的全家福。
That is a photo of my class.这是我们班的照片。
水利万物而不争,
而万物莫能与之争。