Ⅱ.核心短语
1.________________ 举起 2.________________ 一上一下地 3.________________ 偶然地 4.________________ 向……问好 5.switch on __________________ 6.stare at ________________ 7.ask sb a favor ________________ 8.in competition with ________________
lift up
up and down
by accident
say hello to
打开(灯、无线电等)
凝视,盯着
请某人帮忙
与……进行竞争