What can you do with earthworms?
蚯蚓可以用来做什么？
蚯蚓能缩小。
Earthworms grind up the soil as they eat.
蚯蚓进食时把土壤弄细。
Earthworms play a vital role in food production.
在粮食生产方面，蚯蚓扮演极为重要的作用。
Some earthworms have as many as ten hearts.
有的蚯蚓有多达10颗心脏。
We can see earthworms on the ground after rain.
雨后我们在地上能看到蚯蚓。
Fish like earthworms, but cannot walk out of water.
鱼喜欢吃蚯蚓，鱼却不能上岸。
Earthworms have no backbone, they are a kind of worm.
蚓没有脊椎，是一种蠕形动物。
He is baiting the fish hook with bait made from earthworms.
他在鱼钩上挂上用蚯蚓制成的鱼食做诱饵。
He is baiting the fish hook with bait made from earthworms.
他在鱼钩上挂上用蚯蚓制成的鱼食做诱饵。
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