stumbling blocks
美 [ˈstʌmblɪŋ ˌblɑk]英 [ˈstʌmblɪŋ ˌblɒk]
- n.绊脚石;障碍
- 网络化者
复数:stumbling blocks

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Slow implementation of B2B e- marketplaces is a natural consequence of some inadvertent stumbling blocks.
执行缓慢的B2B电子商务市场是一些无心的自然绊脚石。
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