Once checked in, you'll undress from the waist up and wear a special robe.

报到以后，你就要脱掉腰部以上的衣物，然后穿上一件特殊的袍服。

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Once you've checked off the items you ordered, put this record in your file.

你一旦核对了所定货物，就把该记录存档。

《柯林斯英汉双解大词典》

While in custody, Jaradat was checked more than once by a doctor, and no medical problems were found.

CNN: Palestinians protest inmate's death, warn Obama

In standard IVF, embryos are removed from the incubator once a day to be checked under the microscope.

BBC: IVF 'may be boosted by time-lapse embryo imaging'

Its audience peaked in the 1990s when it had 20 million viewers who checked the service at least once a week.

BBC: Ceefax service closes down after 38 years on