Since participants in AoT events come from all over the world, travel is always an issue, not just because of the expenses, but also the travel time.

由于AoT活动的参与者来自世界各地，旅行总是一个问题，不只是由于旅行费用，还在于旅行时间问题。

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In many cases executives issue blanket orders to their buyers and purchasing departments to reduce expenses by some arbitrary number like 20%.

很多主管会给公司的采购员和采购部门发总订单，随便定出一个成本降低目标，例如减少20%之类。

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At present, the energy issue has become one of the most concern problems of the world, cutting down expenses become a common concern of study.

目前，能源问题已成为世界上最引人关注的问题之一，开源节流成为各国共同关注的研究课题。

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At present, the energy issue has become one of the most concern problems of the world, cutting down expenses become a common concern of study.

目前，能源问题已成为世界上最引人关注的问题之一，开源节流成为各国共同关注的研究课题。

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