He was led forth, and a priest was brought who was to say a mass for his soul.
他被领了出来，有一位牧师来为他的灵魂的做弥撒。
They are very light, that is to say, low mass.
很轻，也就是说，质量很小。
The center of mass is basically a point that you would say is right in the middle of the object.
理论上，重心就是,恰好处在物体中心的点。
How to say it? Only language of mass destruction?
说要怎么话？语言才有杀伤力？
How to say it? Only language of mass destruction?
说要怎么话？语言才有杀伤力？
应用推荐