I hummed. But as I grew up, I improved.

我尖叫，发出嗡嗡声，但是随着长大，我有了进步。

youdao

My sister is pop music fan, and yet she didn't actually recognized the song that I hummed just now.

我妹妹是流行音乐迷，可是她居然没有听出我刚才哼的歌曲。

youdao

I wonder if, at last, you are tired of my song that you hummed to yourself while walking through the field.

我不知道，你在田野中穿行时低声吟唱的我的那支歌，是否终于使你厌倦了？

youdao

My father must have hummed a tune as I stood on his shoes and he waltzed me, but what I remember are the giant steps I was suddenly making.

NPR: Excerpt: 'The Importance of Music to Girls'

To my relief, the engine hummed back to life when I restarted it.

BBC: Where waterfalls outnumber people

The air conditioning hummed and vibrated so loudly that I thought an A380 was landing on the roof.

BBC: What to check out when you check in