When considering whether to use paper or plastic enclosures for your photos, select enclosures that pass the Photographic Activity Test (PAT).

当您考虑使为您的藏品使用纸质或塑料封套时，请选择那些通过摄影活性测试的封套。

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Every time when I thought I did a great job on repairing test, I always pat myself on the back by having some junk food.

每当我觉得自己已经准备好考试时，总是吃些零食对自己表示祝贺。

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Passengers who are asked to undergo a second screening can choose a pat-down search or the millimeter-wave test.

CNN: TSA trying new airline passenger screening machines

"We are actively meeting with a number of companies that are attempting to develop a product, and have reviewed test results for several products, " MLB spokesman Pat Courtney told the AP in an email after Happ was injured Tuesday night.

NPR: Jennings, Rays Shaken By Happ Getting Hit In Head