Frontiers
n. 边界( frontier的名词复数 ); 边境; 开发地区的边缘; 尚待开发的领域
🗣️ 情景例句
I'll see what I can do about it.
我会尽力而为的。
It's a shame these instructions are so complicated.
真遗憾，这些说明太复杂了。
Von Frisch watched the wagging dance very carefully.
冯·弗里施非常仔细地观察蜜蜂跳的摇摆舞。