“嗯，我也不知道该选哪个颜色。”她犹豫地说。

"___Mm, I don't know which color to choose," she said hesitantly.

嗯，这碗汤真鲜美！

___Mm, this soup tastes amazing!

“嗯，我觉得这个主意不错，”他边思考边说道。

"___Mm, I think this idea is good," he said while considering.