Whittle, whose primary area of research relates to galaxy formation, presented his cosmic riff at a recent meeting of the American Astronomical Society in Denver.
在美国天文学会近期在丹佛举办的一个会议上，以星系形成为主要研究领域的惠特尔介绍了他的宇宙即兴小段。
2
They then contribute to the formation of these undesirable chemicals in some North American and French wines.
在部分北美与法国葡萄酒中此类使人不悦的化学物质就是如此产生的。
3
This made them an easy target no matter where they went, and in combination with their emphasis on holding their formation, they were sitting ducks especially during the American Revolution.