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
to open the building for us on the next four weekends.
在往后四个周末开放那座建筑。
To howl, to snarl
远吠
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司进行的研究属于一般和基础性的研究。因此不保密对他们才有利。