正面的英文缩写

PC是personal computer 个人电脑VS是versus 对，相对

上下左右前后Before and after the up and down or so双语例句1.我认为那是个明显的优势——上下左右前后自由移动，甚至开出路外。I think that's a clear advantage — just sort of being able to kind of move over and around and up and down and get out of the way. bbs.zxxk.com2.研究者们认为，这些纹路显示了这种鸭嘴龙的牙齿运动很复杂，包括了上下、左右、前后的运动。The researchers say the scratches reveal that the movements of hadrosaur teeth were complex and involved up and down, sideways and front-to-back motion. article.yeeyan.org3.直升机和固定翼飞机相比，直升飞机的飞行更加灵活，直升机是六自由度的，也就是说直升机可以上下前后左右飞，直升机还能悬停。Helicopters and fixed-wing aircraft, helicopters flying more flexible, helicopters are six degrees of freedom, that is to say around a helicopter can fly up and down, the helicopter can hover.

PC=Peace Corps （美国）和平队 =personal computer 个人电脑 =politically correct/ness 政治思想正确的/性VS=versus

上up-u，下-down-d，左-left-l，右-right-r，前-front-f，后-back-b

PC是 personal computer＝ 个人电脑 vs 是 versus 较量 ，对，相比ATM＝auto teller machine= 自动提款机POS= positive 简写 (正面)， post, point of sales