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sit / stand bolt upright

更新日期:2026-08-14

词语 sit / stand bolt upright
释义

sit / stand bolt upright to sit or stand with your back very straight, often because something has frightened you〔常因受到惊吓〕挺直地坐着/站着:•She sat bolt upright in the back seat.她直直地坐在后座上。

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