Steinberg and Gardner randomly assigned some participants to play alone or with two same-age peers looking on.

斯坦伯格和加德纳随机分配了一些参与者，让他们单独玩或者让两个同龄的同伴看着他们玩。

youdao

I began to worry about her, as at that time a park full of strangers was not a good place for small kids to play alone.

我开始担心她，因为当时公园里满是陌生人，小孩子一个人玩耍并不安全。

youdao

There is a lot of competition all year and you play alone.

一年下来有大量的比赛，而你要孤身奋战。

youdao

Bobby had someone to play with him, someone to love him and care for him, while out there on the hillside Kathleen was alone--all alone.

VOA: special.2010.05.15

So, think about the birches as a tool, another tool, but this time a tool for play, a tool for playing alone.

把桦树看成一种工具，另一种工具，但是这次是玩的工具，只是玩的工具。

耶鲁公开课 - 现代诗歌课程节选

But virtually every game is antithetical to solitude, even if you play alone.

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In a 2004 study on the parenting beliefs of college-educated mothers in the U.S. and France, the American moms said that encouraging one's child to play alone was of average importance.

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He also carves out some time to play alone.

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