New Words：

shoulder [ˈʃəʊldə(r)] 肩;肩膀
sign [saɪn] 招牌;标牌;指示牌;标志
bounce [baʊns] (使)弹起，弹跳
bouncy [ˈbaʊnsi] adj. 弹性好的;有反弹力的;
bouncy ball 弹力球

Sample Sentences：

He put his hand on Pete's shoulder.
He carried the child on his shoulders.

There's a big sign in front. You can't miss it.
The sign on the wall said ‘Now wash your hands’.

I can bounce the ball.
The house was filled with bouncy toys.
The ball bounced twice before he got it.

twice [twaɪs] 两次;两遍

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