Marie turned to Lord Kelvin, an old friend and fellowscientist, who was seated beside her.
玛丽扭头转向坐在她旁边的凯尔温勋爵，她的一位老朋友和同行。
2
The person who can inspire you can be your neighbor or your relative, a celebrity (I can't say that I have many of those on my list though), a world-renowned scientist or a fellow-blogger.