Uel
abbr. upper explosive limit 爆炸上限
🗣️ 情景例句
He has realized how precious health is.
他已经体会到健康的可贵。
Don't forget to help him.
不要忘记帮助他。
But nothing can match them for speed and comfort.
但就速度与舒适而言，飞机是无与伦比的。