“词干”造句
如果孩子看到hear这个词，我们就应该告诉他这是hearing和hears的
词干。
If the child sees the word "hear", we should show him that this is the base word in "hearing" and "hears".
在构词法中, 语素被分为词根,
词干, 词基和词缀.
In formation, morphemes are labeled root, stem, base and affix.
词干就是去掉所有词缀之后的词.
A theme is a word with all of the affixes removed.