您要查找的是不是：
- semi butterfly circuit 半蝴蝶式电路
- butterfly circuit type frequency meter 蝶形电路式频率计
- 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。
- His hobby is collecting butterfly specimens. 他的业余爱好是采集蝴蝶标本。
- Take not a musket to kill a butterfly. [谚]小题大做; 杀鸡焉用牛刀。
- There are two breakers in this circuit. 这个电路里面使用了两个断路器。
- A replaceable printed circuit board. 一种可替换的印制电路板。
- The circuit of the city walls is three miles. 环绕本市城墙的周长是三英里。
- 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。
- There must be a break in the circuit. 电路中一定有断路。
- A short circuit will blow the fuse. 短路会烧断保险丝的。
- A short circuit put the machine out of action. 短路使机器停转。
- 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。
- The semi drunk man regarded them with fishy eyes. 那个半醉汉迷迷糊糊地看着他们。
- The switches close the contacts and complete the circuit. 这些开关可使接触器接通电流形成回路。
