Upper plenum
[化] 顶盖
🧩 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;
n. 充实, 充满
🗣️ 情景例句
Help! Help! I can't swim!
救命！ 救命！ 我不会游泳
How old are you?
你多大了？
There're usually a lot of parties on New Year's Eve.
除夕之夜有很多晚会。