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英语单词“aphid”的意思是：蚜虫，是一种吸食植物汁液的昆虫。
读音：/ˈæfɪd/
例句：
1. These aphids are sucking the leaves of the plants. 这些蚜虫正在吸食植物的叶子。
2. Aphids are among the worst plant pests in the world. 蚜虫是世界上最严重的植物害虫之一。
3. They emit a sweet-smelling chemical which attracts the aphids’prey. 它们释放出一种香甜的化学物质，这种气味引来了蚜虫的食物。
4. Some of these will make a detour round any predators and then settle on the plants. 一些蚜虫会绕过捕食者，然后在植物上定居下来。
5. The aphids can move to a new plant every 24 hours or so. 蚜虫可以在一天之内转移到新的植物上。
6. The plant itself may suffer from a lack of water and nutrients as a result of the aphids. 由于蚜虫的原因，植物本身可能会因缺少水分和养分而受到影响。
7. Scientists think they are not far away from discovering ways to deal with these destructive pests. 科学家们认为他们不远的将来能够发现对付这些毁灭性害虫的办法。
8. An excessive amount of nectar will encourage the growth of aphids and damage plants and flowers. 过多的花蜜会刺激蚜虫的生长，对植物和花朵造成损害。
9. The main cause of aphid attacks is thought to be the plant’s own defence mechanisms which may become overwhelmed by their growth. 造成蚜虫侵袭的主要原因被认为是被其侵扰的植物自身的防御机制过少而不能抵抗其生长。
10. They also play a vital role in the life cycle of some plants and can help spread their seeds to new areas. 蚜虫在某些植物的生命周期中扮演着重要的角色，可以帮助将它们的种子传播到新的地区。
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