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On warm, sunny days, bees are busy visiting hundreds of flowers. Inside each flower is a drop of sugar - sweet nectar. Bees feed on this, and use it to make honey back at the hive.
1. be busy doing：忙于做某事
2. nectar：花蜜
3. feed on：以…为食物
4. hive [haɪv] ：蜂巢
5. a drop of … 一滴……
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