🗣️ 情景例句
Please sit down.
请坐下。
The speaker kept wandering off.
演讲的那个人老是走题。
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，