例句與造句

1. without fixed class organizational system, the own arrangement such as means of plan of the study need that the student can press him, study, study learns
   沒有固定的班級建制，學生可以按自己的學習需要、學習進度、學習方式等自主安排學習。
2. the algorithms of text classification are supervised, which means the classifier training need some human labeled data of fixed classes . generally, the accuracy of classifier is higher with more labeled data . but the labeled data by hand are expensive resource
   文本分類算法是有監(jiān)督的學習算法，它需要一個分類好的，類別已標識的文本數(shù)據(jù)集訓練分類器，然后用訓練好的分類器對未標識類別的文本分類。
3. It's difficult to find fixed class in a sentence. 用fixed class造句挺難的