Either way, onesign of dark matter particles, researchers think, is a burst of annihilation-induced gamma rays.
科学家们认为，无论是这两种解释的哪一种，暗物质颗粒的一种标志是粒子湮没爆发出的伽马射线。
2
First, you have to recognize the number one warning sign: the feeling that you absolutely must get your partner to see it your way.
首先，你必须识别出第一个警告信号：那种绝对、必须让你的伴侣看到你的方式的感觉。
3
ENN executives have talked to the US department of energy about joint research, a sign that the transfer of low-carbon technologies is no longer a one-way street from west to east.