If you educate the public about dangerous diseases they can protect themselves, which will help to halt the spread.
如果你能教育公众如何来防治危险疾病,他们就能够保护好他们自己,从而阻止疾病的传播。
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,