Unit 6 How long have you been collecting shells?1. how long 多长，多久 2. a skating marathon 滑冰马拉松 3. a pair of 一双，一副,一把，一条 4. raise money （for charity） （为慈善机构）募捐，筹钱5. the whole five hours 整整五个小时 6.three and a half years 三年半 = three years and a half7. thanks for 因而表示感谢 8. run out of 用完，用尽9. by the way 顺便说一下，顺便问一下 10.in Russian style 以俄罗斯的风格11.fly kites 放风筝 12.a talent show 才艺表演13.finish doing sth. 结束做某事 14.be interes
