Big bang
01
大爆炸, 大爆炸理论
the explosion that, according to most scientists, caused the existence of the universe
例子
The Big Bang theory posits that the universe began with a massive explosion approximately 13.8 billion years ago.
大爆炸理论认为，宇宙大约在138亿年前由一次大爆炸开始。
Astronomers study cosmic microwave background radiation to gather evidence supporting the Big Bang theory.
天文学家研究宇宙微波背景辐射以收集支持大爆炸理论的证据。
