Uel
abbr. upper explosive limit 爆炸上限
🗣️ 情景例句
spending so much time together?
老是在一起呢？
When did you do homework?
你什么时候做家庭作业？
runs the gentle slope of the continental shelf, geologically part of the continents.
从地质学上来说，它是大陆的一部分。