very good reference
很好的参考资料
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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
A very good reference for people interested in applied cryptography.
一个非常好的参考感兴趣的人应用密码学。
This Dictionary of the Usage of the English Language is a very good reference book.
这本《英语用法大辞典》是本不错的工具书。
"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
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