I didn't do all that work just for the fun of it.

我做这一切并不仅仅是为了好玩。

《牛津词典》

Sometimes I would think about staying up late at night, so I could see him leave them there, but just like with Santa Claus, I didn't want to ruin the magic for fear that he would never do it again.

有时我曾经想熬夜藏在一边，以看到他把它们留在那里。但就像对待圣诞老人的传说那样，我不想破坏掉这种神奇幻想，更害怕他再也不会继续。

youdao

I didn't do it on purpose;I just didn't have time to eat between meals after my girls were born.

我并非刻意减少零食，只是在我的宝贝女儿们出生以后，我压根就没时间去吃零食了。

youdao

He'll probably grow up and fight us, but I just didn't want to do it.

CNN: STORY HIGHLIGHTS

But in this picture, I didn't have a chance to do that, so it just went out the way that I had it at that time.

NPR: A Robert Wise Reprise

When people laughed at me, I didn't know, 'Should I keep going or should I just forget about it or do as everybody else does?

NPR: Singer Brings a Modern Sound to Chinese Jazz