Lesson 99 OwOw!Teacher : Vivian.Word and expressions ow int. 哎呦 slip(slipped, slipped) v. 滑到,滑了一脚 fall(fell, fallen) v. 落下,跌倒; downstairs adv. 下楼 hurt(hurt, hurt) v. 伤, 伤害, 疼痛 back n. 背 stand up 起立,站起来 help v. 帮助 at once 立即 sure adj. 一定的,确信的 X-ray n. X光透视Scramble the words ow int. 哎呦 sipl(slipped, slipped) v. 滑到,滑了一脚 lfla(fell, fallen) v. 落下,跌倒; n. 秋天 owdntsairs adv. 下楼 urht(hurt, hurt) v. 伤, 伤害, 疼痛 bcka n. 背 起立,站起来 elhp v. 帮助 立即 ures adj. 一定的,确信的 X-ray n. X光透视Q&AQ&A1.Whats the matter with Andy?