In every field, from the simplest to the most abstruse, there are several books for the average, untrained lay reader, right through to those for experts in the field.
每个领域，从最简单到极深奥，都会有很多简单的书针对未经训练的普通外行读者，也有很多深奥的书针对领域专家。
So far, so good, but when a user edits and saves the document, your form still treats the field as single value, not multi-value, so it may render your Reader Names field useless.
到目前为止没有出现问题，但是当用户编辑并保存文档时，表单仍会将该字段作为单值处理，而不是多值，因此可能会使 Reader Names 字段变得毫无用处。
If you make your Reader Names field single value in your form, and then later decide to add additional values, you may do so by writing an agent that adds these extra values.
如果在表单中将Reader Names字段设置为单个值，后来又决定添加其他值，那么可以通过编写添加这些附加值的代理来实现上述操作。
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