If you can settle down to one thing with undivided attention and in a light mood, this time you will become happy and efficient, but never lost in countless goals.

而你只要专注下来，一心一意，又轻松地去做事，这时你才能变的比较快乐而又有成效，也不会被那么多的目标所淹没。

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One day I'll want to settle down and have a family.

总有一天我会想安顿下来，成个家。

《柯林斯英汉双解大词典》

After leaving their homes, they did not settle down again but spent their lives moving from one place to another.

离开家后，他们没有再定居下来，而是过着居无定所的生活。

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After that peers can settle down to one of their favourite activities: detailed constitutional debate, in the committee stage of the Succession to the Crown Bill.

BBC: Week ahead

And broadcast journalist Tom Brokaw, also rejected as a teenager by Harvard, says it was one of a series of setbacks that eventually led him to settle down, stop partying and commit to finishing college and working in broadcast journalism.

WSJ: When Success Follows the College Rejection Letter