如果父母仅有一个孩子，那他们将不得不更加用心一些，给孩子提供这些学习必要技巧的机会。

If parents only have one child, they will just have to work a little harder to give children those opportunities.

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但鲍女士决定去一个离家更近，而且价格较为适中的地方，而且在那个地方，她不仅有机会改进自己的英语水平，还可以与讲中文的人交流。

But Ms. Bao decided on a destination that would keep her closer to home and cost substantially less, while giving her the chance to improve her English and converse with Chinese speakers.

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理论上来说，游客每年仅有一次机会来参观这个坐落在一个军事单位中的直升机博物馆。

Theoretically, visitors can see this helicopter museum, placed in a military unit, only once a year.

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