第十九课李优优1.?2.?腰[yāo]waist腰扭了[yāoniǔle]lumbarsprain3.?不幸[bùxìng]unfortunate鞋带[xiédài]shoelace开了untied长跑long-distancerun4.?台灯[táidēng]desklamp赶忙[gǎnmáng]hurry;hasten扶[fú]holdup;supportwiththehand5.?马路对面acrossthestreet;ontheopposite/othersideofthestreet6.?受伤[shòushāng]beinjured;bewounded摔倒[shuāidǎo]fall;trip;tumble伸手[shēnshǒu]stretchoutone'shand7.?看样子itseemsthat8.?书法[shūfǎ]calligraphy9.?10.?1.?2.?3.?4.?合同[hétong]contract;agreement5.?积极报名activelysignup后悔[hòuhuǐ]regret容易激动excitable6.?教训[jiàoxun]lesson7.?8.?9.?10.?买房比买汽车难1.”你看,大明、建国都开上车了“这句话是什么意思?2.录音中没有提到哪种房子?3.“上下班就靠公共汽车了”是什么意思?