Which sentence in the ancient poem "Looking at Lushan Waterfall" is a metaphor?

The current flew down 3,000 feet

The waterfall in Lushan Mountain is like a hundred-foot-long white train, speeding down. The sound of oriole is as clear and sweet as a silver bell, echoing over the mountain village.

Explain a sentence by enumerating numbers, comparing, analogizing and quoting.

5. Metaphor: Metaphor is a metaphor in rhetorical methods. The use of metaphor in expository writing can be ... like a rainbow ",which makes readers more vivid and clear ... Lushan Waterfall; I like "colorful clouds lave? My mind is free and easy, ...

In the poem "Looking at Lushan Waterfall", the sentence dedicated to the waterfall is

In the poem "Looking at Lushan Waterfall", the sentence that describes the shape of the waterfall is (the incense burner in Rizhao gives birth to purple smoke), and the exaggerated sentence in the poem is (it is suspected that the milky way has set for nine days). The whole poem expresses the author's thoughts and feelings (loving nature). Supplement: This poem is based on (from far to ... [Details]