Levelness
水平度
🗣️ 情景例句
He keeps himself fit by running 5 miles every day.
他每天跑五公里以保持身体健康。
Who called a while ago?
刚才谁在打电话？
The police had been told that a bomb had been planted on the plane.
有人报告警察，说飞机上安放了一枚炸弹。