1·I couldn't concentrate, presumably because I was so tired.
我的精神集中不起来，大概是太累了吧。
—— 《牛津词典》
2·He decided, very sensibly, not to drive when he was so tired.
他很累，所以决定不开车，这是很明智的。
—— 《牛津词典》
3·I am so tired and I need to lie down.
我太累了，需要躺下歇会儿。
4·So tired I was that I wanted to stop running, but I was carried along by the cheers of my classmates.
我太累了，几乎想停下跑步，但是同学的欢呼声带动着我继续跑。
5·I was so tired I went straight to bed.
我太累，径直上床睡了。
—— 《牛津词典》
6·I was so tired I crashed out on the sofa.
我累极了，在沙发上就睡着了。
—— 《牛津词典》
7·She was so tired (that) she couldn't think straight.
她累得昏头昏脑。
—— 《牛津词典》
8·She was so tired, her eyelids were beginning to droop.
她太疲倦了，眼睑开始往下垂。
—— 《牛津词典》
9·Great! I'm so tired these days.
太好了！这几天我太累了。
10·He felt so tired that he decided to give up.
他觉得很累，决定放弃。