求翻译：让角色、对话、关系、时刻或故事加深的技术与让其变得有趣的情感工程技术是不同的，前者是可选的，而后者是要努力追求的，除非另有原因。由于许多NPC对话要传达信息或提示玩家动作，因此很难让对话具有趣味性（和必要的深度）。值得注意的是，随着游戏的进行，角色言语可能改变，可能是角色特性变了、忠诚程度变了、情感增长了、深度增加了发生其他方面的改变。是什么意思？

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Let role moment, dialog or story, relations, deepening the technology and allow it to become interesting emotional engineering technology is different in that the former is optional, and the latter is to pursue the, unless there are special reasons. Since many NPC dialog is to communicate informatio

Lets the technology which the role, the dialogue, the relations, the time or the story deepen with let it become the interesting emotion project technology is different, the former is may elect, but the latter is must pursue diligently, only if has the reason in addition.Because many NPC dialogues m

Character, dialogue, relationship, always or story deepened technology and make it really interesting emotional engineering is different, which is optional, and the latter to strive for, unless there are reasons why. Since many NPC dialogues to convey information or prompt the player actions, it is