Question

有没有大神帮我分析一下这个句子啊，成分，重点句词短语等方面

有没有大神帮我分析一下这个句子啊，成分，重点句词短语等方面At first the river is small and the water is clear and cold.Then it begin to move quickly.

Answer 1

At first 时间状语
the river is small 主系表
the water is clear and cold 主系表

追答

Then 时间状语
it 主语
began 谓语
to move quickly (不定式短语做)宾语