Vif
[计] 超低频辐射
🗣️ 情景例句
That's a good question, Robbie.
这是个好问题， Robbie。
Oh no! It's starting to rain.
哦，糟了！开始下雨了！
In this way, we have learned all that we know of the laws of astronomy,
例如，用这种方法，我们完全掌握了天文学的规律。