Protheca
[动]前鞘
🗣️ 情景例句
OK, here are the walnuts.
嗯， 核桃在这 。
He is playing on the slide over there.
他正在那边溜滑梯。
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。