Something was weighing on her mind.

她心事重重。

《牛津词典》

Memories came crowding into her mind.

往事一齐涌上她的心头。

《牛津词典》

So many thoughts whirled around in her mind.

她思绪万千，脑子里乱作一团。

《牛津词典》

She had been addressing Christmas cards, and the only thing that came to her mind was 'Merry' as in Merry Christmas."

VOA: special.2009.12.21

and you're looking to the menu and there are so many delicious things that she cannot seem to make up her mind.

你们看菜单时，发现有太多美味的菜肴，你的女友一时难以取舍。

I need 课堂 - SpeakingMax英语口语达人

The thousand liveried angels - begin to cast their special beam on the virgin's outward shape -- that's her body, the unpolluted temple that houses her virginal mind.

一千个穿着衣服的天使,开始在处女的身体上投射他们神奇的光束-,那就是她的身体，那个装着无暇心灵的未受污染的殿堂。

耶鲁公开课 - 弥尔顿课程节选

And no amount of wheedling and whining from us would have changed her mind.

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In her mind, a woman with no child could be explained only by vast untrammelled calamity.

NEWYORKER: Miss Lora

She says that her idea of being feminine doesn't prohibit her from speaking her mind.

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