He said that humanitarian catastrophe required more pressure on President Assad's administration to deliver on his promise to allow urgent aid.

他说这场人道主义灾难要求给总统阿萨德政府施加更大压力来兑现他允许进行紧急援助的承诺。

This layout meant that the strips were slightly bent from the beginning and required only a tiny, brief pressure to generate 15 microwatts.

这种设计意味着开始材料会轻微弯曲且仅需要微小短暂的压力就能产生15微瓦特的电。

This, though, required both high pressure, which is expensive to create, and the electromagnets themselves, which are costly to buy and costly to run.

不过这需要两种高压，成本很高，电磁铁本身的购买和运行成本就很高。

It requires pressuring policymakers, using the media to change narrative, making arguments in public, persuading skeptical neighbors one by one by one.

它需要向政策制定者施压，利用媒体改变说法，公开论证，逐一说服持怀疑态度的邻国。