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
I'll see what I can do about it.
我会尽力而为的。
In books, are embalmed the greatest thoughts of all ages.
历代最伟大的思想都载入史册而不朽。
Not until last week did I get a work permit.
直到上周我才拿到工作许可证。