Sbo
[医][=single-breath oxygen]一次呼吸氧量
🗣️ 情景例句
Thank you for your great service.
感谢你周到的服务。
Mrs. Hughs, this is Peter Brown.
休斯太太，这是彼得i布郎。
So far, no man has travelled farther than the moon, but spaceships without people have reach other parts of the universe.
到目前为止，尚未有人到过比月球更远的地方，但无人驾驶的宇宙飞船已到达过宇宙的其它地方。