🧩 词语组成解析
🗣️ 情景例句
What's on the menu?
有什么菜？
I'd say yor're about twenty-three.
我猜你大约23岁。
Thus one simple fact, a change in the number of bison, had an effect on the whole wildlife chain of the plains.
因此，出现了这样一个简单的事实--野牛数目换的变化对平原的整个野生生物链都产生了影响。