Though hobbled by strokes and blindness, he now grinned from ear to ear at the prospect of power.

尽管拖着中风和失明之躯，对于即将获得的权利他还是咧着嘴笑了。

OK, as you can see, Sian is grinning from ear to ear, which is a common expression.

好，如大家所见，希恩满面笑容，这是很常见的表情。

The Weasleys roared with laughter and Harry settled back in his seat, grinning from ear to ear.

韦斯莱兄弟哈哈大笑，哈利靠在椅背上，乐得合不拢嘴。

There was also a large cat, which was sitting on a chair and grinning from ear to ear.

椅子上坐着一只很大的猫，正咧着大嘴笑呢。

Nobby was grinning from ear to ear.

诺比笑得合不拢嘴。

John, when I turned to him, was grinning from ear to ear.

约翰，当我转向他时，正笑得合不拢嘴。

He was lying on his back with his mouth open, grinning from ear to ear.

他张着嘴仰面躺着， 笑得合不拢嘴。

He looked up, blinking, and saw an offensively ugly elderly man, grinning from ear to ear.

他抬头，眨了眨眼，就看到了一个丑陋到令人厌恶的老者， 咧嘴笑得合不拢嘴。

She was sitting between her beaming father and mother in the living room of their house, waving the Golden Ticket above her head, and grinning from ear to ear.

她在他们家的客厅里，坐在满面红光的爸爸妈妈中间，把金奖券高举在头顶上挥来挥去，咧着嘴大笑。