Upper explosive limit
[化] 爆炸上限
🧩 词语组成解析
upper
['ʌpə]
adj. 地位较高的;上面的;内地的;地表层的;
n. 鞋帮，靴面;兴奋剂;令人兴奋的经历;
🗣️ 情景例句
Too bad kids can't vote.
可惜小孩不能投票。
Who minds his own business has no time to mind other folks.
为人只顾自己事，就无时间关心人。
They go to school here, too, but to a different school.
他们在中国上学，但不同校。