At first she did agree but then she changed her mind.

起头她是同意的，后来变了卦。

youdao

She stood up and began to go cautiously towards the guinea-pig. But then she changed her mind.

她站起来，开始小心翼翼地向豚鼠走去，可是，她又改变了主意。

youdao

But then she started singing, and within two seconds everything changed.

但是当她开始唱歌时，在最初的2秒钟，我的一切想法开始改变了。

youdao

She initially agreed to join him but then changed her mind and said she would go to another bedroom, where she fell asleep.

BBC: Scotland

She first came to the UK as a visitor in 2003, but then changed her status to student and attempted to enrol on a banking course at a city college, her solicitor explained.

BBC: NEWS | UK | Wales | Cancer patient loses visa battle

If you decide your listener has fundamentally changed the way he or she sees you, then apologize, but keep it short and low-key.

WSJ: What Makes People Overshare?