Reference My former employer provided me with a very good reference.

我以前的雇主给我写了一封很好的介绍信。

youdao

The key to working with it is having a good reference handy while you're working.

要使用它，关键问题是在工作时手头有一本好的参考资料。

youdao

Any good heavily-used program needs good reference documentation, and BASH is no exception.

凡是使用率高的好程序都需要好的参考文档，BASH也不例外。

youdao

"He was young and I had a very good time drawing his picture because I used a lot of reference material that were paintings made of him at different times in his life.

VOA: special.2009.02.27

It is Mainly for beginners or novices looking to better understand the concepts and the hows involved, however it is also a good reference for intermediate and above model railroaders.

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The United States provides a good reference point.

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McQueen's collection, which he called "Jack the Ripper Stalks His Victims" (a good East London reference), was shown in 1992.

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