sit bolt upright

釋義

1. sit / stand bolt upright

   背部筆挺地坐／站；坐／站得筆直

   to sit or stand with your back straight

同一詞條的短語

• a bolt from the blue
• make a bolt for
• the nuts and bolts
• have shot your bolt
• close, lock, the stable door after the horse has bolted