🧩 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
That was a wonderful dinner.
那次晚宴好极了。
Reason binds the man.
理智约束著人。
Then it turned in a semicircle, ran straight again, and turned in another semicircle to the opposite side.
然后转一个半圈，再沿直线飞，再朝反方向转个半圈。