笑得合不拢嘴 meaning in Chinese

grin from ear to ear

I had an idea that i was grinning from ear to ear .
我还以为我是笑得合不拢嘴了呢。
Ralph's lips parted in a delighted smile and piggy, taking this smile to himself as a mark of recognition, laughed with pleasure .
拉尔夫乐得心花怒放。猪崽子却把这一笑当作是对他的赏识，笑得合不拢嘴。
He ' s been sitting there , grinning from ear to ear
他坐在那里，笑得合不拢嘴。
He grinned , making himself look even more like an archat . knocking back maotai , one after another , he flushed to the roots of his hair
他笑得合不拢嘴，看着更象尊罗汉，茅台酒一杯接一杯地灌着，脸上泛起了红润。