I thought he was just too tired.

我以为他只是太累了。

youdao

Just as mother said, father came back home soon, and went to bed again — he was too tired.

妈妈正说着的时候，不一会儿，爸爸就回来了，并且再一次上床睡觉了——因为他太累了。

youdao

John didn't respond, he just gave her a smile and let his eyelids close, too tired to fight sleep for any longer.

约翰没有回应，他只是给了她一个微笑然后闭上眼睛。约翰再也无法控制自己的睡意了。

youdao

Perhaps he just gets tired of the rather forced passion play that is the lot of a democratic leader, and believes too much in the force of rational argument.

BBC: Obama victorious, but not yet the master politician