Upper bound
[计] 上界, 下限
🧩 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;
bound
[baʊnd]
vi. 跳，弹跳;限制;接壤;
vt. 给…划界，限制;使弹回，使跳跃;束缚;
n. 界限，限制;跃起;（球等的）反跳;
adj. 用带子绑住的;有义务的;装订的，有封面的;[化，物]结合的;
bound(to bind)→装订好的；必定；决心的；被束缚的
🗣️ 情景例句
I had dinner with him Saturday,
星期六我与他一起吃晚餐，
You think this is funny?
你认为这个很有趣？
an Englishman, Sir John Hawkwood, made the remarkable discovery that people would rather pay large sums of money than have their life work destroyed by gangsters.
人们情愿拿出大笔的钱，也不愿毕生的心血毁于歹徒之手。