Birds
n. 鸟类；禽（bird的复数）
✅ 同义词
🗣️ 情景例句
I promise not to think about the city.
我保证不再去想城里的事。
To run a race
竞争
Knowledge began to increase as soon as the thoughts of one individual could be communicated to another by means of speech.
人一旦能用语言同别人交流思想，知识的积累便开始了。