Short butterfly call spread 卖出碟式买权价差
Short butterfly putl spread 卖出碟式卖权价差
Short butterfly call read 卖出碟式买权价差
short butterfly spread with puts 以看跌期权构建蝶式价差空头
Short butterfly putl read 卖出碟式卖权价差
short butterfly spread with calls 以看涨期权构建蝶式价差空头
Short t butterfly putl spread 卖出碟式卖权价差
short iron butterfly spread 铁蝶式价差空头
Check valve and butterfly valve combinations are very popular; normally a short spool piece is required between the valves.
止回阀与蝶阀的连接是经常发生的事，通常需要在这两种阀门之间加上一节短短的阀槽。
Do for short distances. Check medical conditions of swimmers before practicing any butterfly drills.
另外，运动员在开始任何蝶泳练习之前需要做一下身体状况的检查；！
Caterpillar becomes a butterfly, after a lot of hard work of transformation, if it once abandoned, it would fall short.
毛毛虫变成蝴蝶，经过了千辛万苦的蜕变，如果它一旦放弃，那将功亏一篑。
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