"I love his big mouth," said Mary obstinately.

“我喜欢他的大嘴巴。”玛丽固执地说。

"I don't believe he does," said Mary quite obstinately.

“我不相信他会这么希望。”玛丽很固执地说。

He obstinately refused to consider the future.

他执意拒不考虑未来。

I stayed obstinately in my room, sitting by the telephone.

我执意呆在自己的房间里，坐在电话旁。

"It was the robin who showed me the way," she protested obstinately.

“是知更鸟给我指路的。”她固执地反驳道。