2. Metaphor and personification. It vividly depicts the appearance of the river around the pear garden. (That's right)
3. White, fragrant and pure.
It symbolizes the innocent hearts of children. (That's right)
5. Pears are pale, willows are dark green, and willows are full of flowers. ?
Two nights of mandarin duck quilt, pear tree pressing begonia. (The answer is not unique)