我一开始非常勤奋，但没有坚持下去。

I started off working quite hard, but it didn't last.

《牛津词典》

我接受过演员的训练，但没有坚持下去。

I was trained to be an actress but I didn't follow it through.

《柯林斯英汉双解大词典》

或者就是激发了还不够，没有坚持下去。

Or is stimulated the insufficient still, not persist.

youdao