He didn't want a family because he didn't want to be tied down.

他不想要家庭，因为他不想受限制。

《柯林斯英汉双解大词典》

We are tied down by fuel.

我们被燃料死死地绑住了。

youdao

I'm tied down here all day by the work.

我整天都给工作拴在这里了。

youdao

The U.S.military has also announced it is investigating an accusation made by a Swedish charity that American troops last week broke down doors and tied up staff members while searching for insurgents at a hospital in Wardak province.

VOA: standard.2009.09.07

But the opinionated South Carolinian doesn't want to be tied down to a party.

CNN: Neither Republican or Democrat: Why I'm an independent

It is surprisingly effective: just think of Captain Gulliver, tied down by hundreds of thread-like Lilliputian ropes.

ECONOMIST: European politics

None of it, Julie said, would have been possible if they were tied down by jobs and a traditional home.

BBC: How we quit our jobs to travel: The civil servants