🧩 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. 埃文河（英国西南部一河）；雅芳（化妆品品牌）
🗣️ 情景例句
I can't wait much longer.
我再也不能等了。
I was perfectly aware of this before we married.
结婚前我就完全意识到这个问题。
It immediately ran away when she saw it, and experts confirmed that a puma will not attack a human being unless it is cornered.
她刚看见它，它就立刻逃走了。专家证实，美洲狮非被逼得走投无路，是决不会伤人的。