🧩 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
I shouldn't have done that.
我不该那么做。
I won't embarrass myself by calling Mr. Lee by another's name.
我不想因为张冠李戴使自己难堪。
Is it very cold in winter?
冬季的天气很冷吗？