他总是把童年的回忆过分美化，忽略了那些不愉快的经历。

He tends to ___sentimentalize his childhood memories, ignoring the unhappy experiences.

他总是过分感伤地回忆他的初恋，把那段关系想象得比实际美好得多。

He tends to ___sentimentalise his first love, imagining it as much better than it really was.