If the child encounters "hear," we should show him that this is the base word in "hearing" and "hears."

如果孩子遇到这个单词，我们应该向他说明这个词是和的词根。

《柯林斯英汉双解大词典》

Lemmatization is the process of identifying the base, non-inflected form of a word.

词元化 是确定一个单词的固定的基本部分的过程。

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The more precise our word lists, and the more time we put into our base text, the better our results will be.

单词列表越精确，并且花在基本文本上的时间越多，结果就越好。

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Through his use of the media, and with no base other than his own insistent word, Mr Berlusconi has caused a large number of Italians to distrust their magistrates and to believe that they have a programme to assault him.

ECONOMIST: Berlusconi: for and against

Imagine subjecting Shakespeare to a computational process like bioinformatics--not to chop the poor guy into DNA base pairs but to tease out 1, 000-word pieces (or strings) of his plays.

FORBES: Magazine Article

To spread the word, Lawrence is organizing free dog washes to help to build up her customer base, before she even opens the doors to her shop.

CNN: Air Force vet turns to dogs for cash