我能正确使用时间介词和频率副词。

I can use prepositions of time and adverbs of frequency correctly.

“在”是一个常见的中文介词。

In is a common Chinese preposition.

这个句子中的“在”是一个介词。

The word in in this sentence is a preposition.

你需要在句子中使用正确的介词。

You need to use the correct preposition in the sentence.

英语中有很多不同的介词。

There are many different prepositions in English.

老师向学生们解释了介词的结构。

The teacher explained the prepositional structure to the students.

“在桌子上”的“在”是一个介词。

The on in on the table is a preposition.

她努力理解英语中介词“on”的用法。

She struggled to understand the use of the preposition on in English.

他发现很难为这个句子选择正确的介词。

He found it difficult to choose the correct preposition for the sentence.

介词通常显示句子中两个元素之间的关系。

A preposition often shows the relationship between two elements in a sentence.