I was busy. And tired.

我很忙，也很累。

youdao

Mathematics E but I didn't make me tired, but mother busy every day during the summer vacation, was going to work and to teach me learn math.

数学可是我的老大难，令我厌倦不已，但是在暑假里妈妈每天忙忙碌碌，又要上班又要教我学数学。

youdao

I was very busy yesterday, until the present time I still feel very tired!

我昨天工作很忙，感觉到现在还累呢！

youdao

"I was really tired then, too busy to rest, " he said.

WSJ: The Forbidden City of Terry Gou