单词句子用英语怎么说?

"Word sentence" in English can be referred to as "sentence structure" or "syntax".

The concept of sentence structure or syntax comes from linguistic studies and refers to the arrangement of words and phrases to create well-formed sentences in a language. It involves the rules for constructing a sentence, including word order, verb tense, and punctuation.

Examples:

The cat chased the mouse. (subject + verb + object)
She has been studying for the exam for hours. (subject + auxiliary verb + main verb + adverb phrase)

Translation:

猫追逐老鼠。
她已经为考试学习了几个小时。