1.build on以...为基础

I am determined to build on this solid foundation.
我决定在这个坚实的基础之上继续努力|Y~TzoHMTtaEU+(rj6。

2.step back退后

It was necessary to step back from the project and look at it as a whole.
有必要退一步，全面地审视一下该项目m_gTb2W&I,。

3.a range of一系列的
The slim booklets describe a range of services and facilities.
这些薄薄的小册子介绍了一系列服务和设施t--0Ouxb|7E7。

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