If description is coloured by the viewpoint of the character who is doing the noticing, it becomes, in effect, part of characterdefinition and part of the action.
如果描写是由有所察觉的角色来润色的话，它实际上会变成角色定义中的一部分，以及动作中的一部分。
2
The colon (:) character separates the name of the objective function and its definition.
冒号(：)字符分隔开了目标函数及其定义。
3
This definition allows you to use the concept of distance in different applications; here you're interested in the distance between two character strings, or words.