市场销售部负责合同及合同评审记录的保管，合同履行后及时存档。

The Marketing Department is responsible for retaining the contract and contract review records. After fulfillment, the contract shall be filed duly on time.

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但在袭击事件发生前，SEVIS就作为一种改进在美留学生记录的保管方式存在了。

But SEVIS was being developed even before the attacks as a way to improve record keeping on foreign students in the United States.

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记录的保管者是有孔虫类-简称“有孔虫”-它非常小，小到几个有孔虫可以一起坐在针尖上。

The record keepers are foraminifera - "forams" for short - creatures so small that several could sit together on a pinhead.

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