Photo and picture both mean "photo, photo", but is there a difference in specific usage?

Photo and picture both mean "photo", but their usage is different. Photo is the abbreviation of photo. Photo is also used as a prefix to form other words with other words, such as photocopying and photocell, while PICTURE means "picture" in addition to "photo". PICTURE often forms compound words with other words, such as picture-book, picture-card and picture-gallery.

If the expression "photo" can be universal, then the graph has a graph; Portrait; Pictures; The meaning of an image, and a photo only means a photo. Photographs refer to pictures obtained through photographic equipment. Pictures are the general name of all kinds of pictures.