Hummingbirds have discovered that nectar and pollen are very nutritious.
蜂鸟发现
和粉是很有营养
。
Hummingbirds have discovered that nectar and pollen are very nutritious.
蜂鸟发现和粉是很有营养。
Nectar and pollen are very nutritious.
和粉是很有营养。
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