Pull down around your feet and tuck under when you sit down.

坐下的时候，将袋子边缘塞到脚下。

youdao

Unmarried guests sometimes took home a little piece of cake to tuck under their pillow.

客人中的未婚人士有时则将这一小块蛋糕带回家，放到他们枕头底下。

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The breath is being sent into the lumbar region, causing the tailbone to tuck under and lengthen on the exhale, finding space and opening the spine.

呼吸延伸到腰椎，使得尾骨迭起，呼吸得以延长，从而打开脊柱。

youdao

In the upper trim levels you can get LED headlamps that tuck under the headlamp assembly like beaded eyelashes.

WSJ: 2013 Honda Accord V6 Touring Review: A Renaissance of Radical Reasonableness | Rumble Seat by Dan Neil

I'd stuck them in the bin in the kitchen but I did tuck them under something.

BBC

This is an unexpected experience, as you tuck your legs under their wings and spread the velvety plumes across your lap.

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