She is usually excused from her duties during the summer holiday.

在暑期她一般不必担负责任。

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During the summer holiday, I often go riding on the grassland with my brother.

暑假期间，我经常和我的弟弟在草原上骑马。

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During the summer holiday I am going to have a good rest.

在暑假期间，我将有一个良好的休息。

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Millau was infamous as one of France's worst traffic bottlenecks, clogged during the summer holiday migration between Paris and the Mediterranean.

WSJ: A Concrete Ribbon Through the Clouds | Millau Viaduct | Masterpiece by Joseph Giovannini

Paul goes on to make a pretty big deal over how Ron had a part-time job painting the school during a summer holiday and delivering furniture for a store.

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They will carry out daily patrols during the 14-week summer season, which began on the Bank Holiday weekend.

BBC: Beach duties for RNLI lifeguards