他声称有些国家一直试图使他们的特工渗入该共和国。
He claimed that some countries have been trying to infiltrate their agents into the republic.
他在会议上报告说，冰盖融化的原因不仅是大气温度上升，还有融水不断渗入冰隙，使冰盖崩溃的作用。
He told the conference that this sheet is melting not only because it is warmer but also because water seeping through its crevices is breaking it up.
这些蓄水层是在更新世形成的，它们形成于12000至250万年之前，并且缺少能够使砷渗入水中的有机碳。
These aquifers were created during the Pleistocene epoch, between 12, 000 and 2.5 million years ago, and lack the organic carbon that is needed for arsenic to leach into water.
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