In another, they used a telephoto lens to take pictures of a set of keys on a cafe table from the roof of a university building.

在另一次演示中，他们站在一所大学的楼顶上，通过远摄镜头拍到了咖啡桌上的一串钥匙。

youdao

An index is a DB2 object (a separate VSAM dataset) that is comprised of an ordered set of keys extracted from one or more columns of the corresponding table.

索引也是一种DB 2对象(一个单独的VSAM数据集)，它由一组排好序的键组成，这些键是从相应表中的一个列或多个列抽取出来的。

youdao

A template USES schema information about a database, a group of tables, columns, and primary keys to define a group of master replicates and a replicate set.

模板使用关于数据库的模式信息、一组表、列和主键定义一组主副本和一个副本集。

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About a dozen post boxes in Kensington, west London, have had to be sealed up after a postman lost a set of keys.

BBC: Kensington post boxes sealed after postman loses keys

Freed from her usual role as an updated Lana Turner, Johansson successfully plays a direct, tough-talking keeper, who carries around with her a heavy set of keys a woman, her hair pulled back, who feels most comfortable in a plaid shirt and jeans.

NEWYORKER: Lost Love

He can afford it, but it is a high price to pay for accepting a set of keys.

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