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1·The result shows that hackmatack, koyama spruce, bird cherry, and elm have a better capability of detaining dust.

结果显示在所调查树种中滞尘能力方面，杜松、皮云杉、桃稠李、锦鸡、树滞尘能力较强。

2·The bird is in a cherry tree.

鸟在樱桃树上。