He began to put on airs and think he was a grown-up.
他开始装腔作势，以为自己是一个成年人。
Still playing with a group of children, the grown-up are popular with children.
他几十岁的人了还老带一帮小孩子玩，真成孩子头儿了。
The little cock grows up and begins to learn to crow like a grown-up cock.
小公鸡长大了，学着大公鸡的声音开叫了。
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