🗣️ 情景例句
Is this harmful to kids?
这对孩子有害吗？
It won't take much time.
不会花很多时间的。
Imagine a star up t twenty times larger, brighter, brighter and hotter than our own sun.
设想一下，一颗恒星比我们的太阳还要大，还要亮，还要热20倍，