1. She collected a number of cocoons and sat down to have a rest. 她采了许多茧,然后坐下来休息。
2. The cocoon-to-butterfly theory only works on cocoons and butterflies. 茧变蝴蝶理论只适用于茧和蝴蝶。
3. It just so happened that while she was sipping some tea, one of the cocoons that she had collected landed in the hot tea and started to unravel into a fine thread. 事情是这样的,当她喝着茶的时候,她收集的一个蚕茧落在热茶里,然后蚕茧开始散开,变成了一根细线。
4. The silkworms have gone into the bushes to spin their cocoons. 蚕上山了。