He thought that at any time, the butterfly might spread its wings, shrink the body.

他认为，在任何时候，蝴蝶都可能展开翅膀，收缩自己的身体。

youdao

Wuhan in Night:Wuhan in night is like a dancing butterfly, Wuchang, Hankou and Hanyang are the spread yellow wings.

武汉之夜：夜里的武汉像一只翩翩起舞的蝴蝶，武昌、汉口、汉阳是摊开的淡黄色翅膀。

youdao

The bottom of the root ball will look something like the spread-open wings of a butterfly.

VOA: special.2011.04.19

The new transaction has some similarities and some differences compared to the last butterfly spread.

FORBES: Bulls Board AMR, Bears Raid Metals & Miners

The largest transaction on the fund today was the purchase of a massive call butterfly spread in the December contract.

FORBES: RIMM Options Ripple With Bullish Speculation

The execution of this trade would involve the purchase of the March 32 call and sell of March 33 call (buying a vertical spread) while simultaneously selling the March 33 call and purchasing the March 34 call ( selling a vertical spread) However, you put it in as one trade (a call butterfly) and then you can fill as one price on the whole trade.

FORBES: Still Flying Into Housing Stocks? Consider This Options Strategy