Floodmark
n. 满潮标, 高水标
🗣️ 情景例句
Sure. I will. You can count on that.
我一定会。
We can see the train station from our house.
从我们的屋子可以看到火车站。
It is the natural frequency of emission of the hydrogen atoms in space and was discovered by us in 1951;
这个频率是空间氢原子释放的自然频率，是在1951年被人类发现的。