🧩 词语组成解析
n. 欢呼者；用欢呼声激励者
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
Mom, that would be terrific!
那太棒了，妈！
Who are you writing to?
你在给谁写信？
Whenever Arthur was angry, he would walk out of the room.
阿瑟生气时，就会出去。