The index used to access items just states how far past the first item in the collection, or sequence, you need to go to get what you want.
用于访问数据项的索引只声明集合中越过第一个数据项有多远，或者称为序列，您需要去获得所需的内容。
2
He has also added one more item (pilot rollout) to mitigate the risk he identifies in rolling out the solution to multiple states.
他还添加了一个条目(试运行)以减轻他所识别出的解决方案在多个州上线的风险。
3
The resource adapter can optionally pass a listener that will be notified as the item of work passes through the states of accepted, started, and completed or, in the failure case, rejected.