Complaining is usually most effective when it is done politely but firmly, and especially when the consumer can demonstrate what is wrong with the item in question.
投诉时语气礼貌且态度坚决通常是最有效的，尤其是当消费者能说明这个物品哪里出了问题时，更加如此。
2
To learn this item, you could just repeat it over and over to yourself each time you studied it, but it turns out that's not a particularly effective strategy for committing something to memory.
If your effective binder level is not at least as high as the necessary caster level to take a specific item creation feat, you cannot choose that feat.