4.10周一.note

piano    //钢琴
violin    //小提琴
river    //河
lake    //湖
swim    //游泳
fish    //钓鱼
libray    //图书馆
class    //班级 
classroom    //教室
spend    //花费。主语必须是人（sb.）
sb. spend some time/money on sth.  【后面一般跟名称】
sb. spend some time/money (in) doing sth.
cost    //花费。主语是某事（sth.）或者某种活动，cost主语不能是人
sth. costs (sb.) some money/time
(doing) sth. costs(sb.) some time/money
take   //意为花费。I takes sb. some time/moeny to do sth. 
school    //学校
bus    //公交车
hour    //小时
restaurant    //餐厅、餐馆
dinner    //晚餐
pounds    //英镑
once    //曾经
during    //在 ...期间
surprise    //惊喜；惊讶