sit up   (TTS Sound)

The sit_up has 2 Senses.

• stay up, sit up
• 起きている
• not go to bed; "Don't stay up so late--you have to go to work tomorrow"; "We sat up all night to watch the election"
• 寝ていない

• sit up
• change to an upright sitting position; "He sat up in bed"
• まっすぐな姿勢で座り直す