Dikes protected the lowland from incursions of the sea.
堤防保护低地免于海水流入。
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And interest groups ranging from postal unions to greeting-card makers exert self-interested pressure on the USPS's ultimate overseer-Congress-insisting that whatever else happens to the Postal Service, aspects of the status quo they depend on get protected.
上
邮政工会下
贺卡制造商的各方利益集团都出于自身考虑,向美国邮政署的最高监管机构——国会施加压力,坚称无论邮政总署怎样调整,他们目前赖以生存的条件必

保护。
7季