While this will improve performance it also becomes a maintenance headache when the WSDL changes over time.
这确实会增进性能，但当WSDL日后作了修改时，这就会使维护变得令人头疼。
Add to this the reels of home movies, videotapes, bundles of letters and documents we file away, and remembering what we have, let alone finding it, becomes a major headache.
加上我们一盘盘的家庭电影、录像带的胶片以及成捆的信件和文件，我们在寻找东西时费劲地回忆我们拥有的东西，不说能够找到它，寻找东西的整个过程简直变成了不小的一个麻烦。
Because the existence of the network becomes more complex, let the incident of leap up goods that a lot of manufacturers headache formerly.
原先让许多厂商头疼的蹿货事件由于网络的存在变得更加复杂。
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