您要查找的是不是：
- A butterfly must not be confused with a moth. 不得将蝴蝶和飞蛾混同起来。
- I think this worm is a larva of a butterfly. 我觉得这虫子是蝴蝶的幼虫。
- A caterpillar is the larva of a butterfly. 毛虫是蝴蝶的幼体。
- A caterpillar must pass through the cocoon stage to become a butterfly. 毛毛虫必须经过茧的阶段才能变成蝴蝶。
- Is there a link between smoking and lung disease? 吸烟与肺部疾病之间有关系吗？
- His hobby is collecting butterfly specimens. 他的业余爱好是采集蝴蝶标本。
- Does smoking contribute to lung cancer? 吸烟会导致肺癌吗?
- Take not a musket to kill a butterfly. [谚]小题大做; 杀鸡焉用牛刀。
- Surgical removal of all or part of a lung. 肺切除术，肺部分切除术对整个或部分肺的外科手术切除
- The mortality from lung cancer is increasing. 肺癌死亡人数在增多。
- He suffered from a lung infection. 他肺部受到了感染。
- Smoking can lead to lung cancer. 抽烟可能导致肺癌。
- He tried in vain to catch the butterfly on the flower. 他白费力气想抓住停在花上的蝴蝶。
- The ugly caterpillar will change into a beautiful butterfly. 丑陋的毛虫会变成美丽的蝴蝶。
- Mr. Toffler has a lung condition. 托夫勒先生患肺病。
- A butterfly is flying up and down among the flowers. 有一只蝴蝶正在花丛里忽上忽下地飞着。
- I don't like this young woman; she seems a social butterfly. 我不喜欢这个年轻女子，她象个交际花。
- A close examination of the butterfly showed that it had four wings. 仔细察看蝴蝶发现它有两对翅膀。
- This species of butterfly is widely distributed over our country. 这种蝴蝶在我国分布很广。
- It shows the metamorphosis of a larva into a butterfly. 它展示了从幼虫变成蝴蝶的过程。
