Upper alarm limit
[化] 上警告限
🧩 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 pick you up here at seven .
我七点钟到这儿来接你 。
There are seven of us altogether.
一共有7个。
That might be in your favor.
那可能对你有利。