Radcm
反雷达措施
🗣️ 情景例句
we're not sure
我们还不能肯定
Joe felt the lecture wasn't very interesting.
乔感觉演讲一点也不精彩。
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。