Upper volta
上沃尔塔（布基纳法索旧称, 非洲国家）
🧩 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;
[电] 伏打
🗣️ 情景例句
Yes. It's the anniversary of one of our important revolutionary movements.
是的。它是中国一个重大革命运动的纪念日。
Sure. Should I check your radiator?
好的。要不要检查一下散热器？
Sometimes we aren't able to get into every building because there are too many steps.
有时我们并不能进每栋楼房，是因为楼梯太多了。