当我们上飞机的时候，通常已经很累了，而拥挤的空间和不稳定的网络使工作更具挑战性。

We are usually tired already by the time we get on a plane, and the crowded space and unstable internet connection make work more challenging.

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把责任下放基层，有利于加快决策，使工作更具挑战性。

To push responsibility to lower levels, speed-up decision, make jobs more challenging.

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