32. on the air 正在广播; 播送 =be broadcast 　go on the air 开始广播 go off the air 停止广播

in the air在空中; (消息等)在传播, 悬而未决的 by air = by plane

31. go to town 进城 in town 在城里 go to the country in the country

30. determine to do sth；make up one’s mind；decide 　be determined to do sth 决意/ 决心做某事

29. run away from school 逃学 skip classes

28. escape (from)... 从...逃离 escape from / flee (from) /run away from a country

escape doing sth ； escape being caught 没有被抓住 catch sb doing sth; be caught doing sth

27. run after 追赶； 追求； 追捕 be after

26. lock …up 把…锁起来

25. take one’s place; take the place of 代替

24. stay/be away for a month 离开一个月

23. a thirteen-year-old girl 十三岁小姑娘

a girl of thirteen years old; 　a girl of thirteen years of age; 　a girl aged thirteen