American soldiers spent seven years patrolling the urban neighborhoods of Iraq; its troops battled insurgents there block-by-block and house-by-house.
美国大兵在伊拉克的街头巷尾巡逻了整整7年，挨家挨户的与叛军对抗。
2
As for local search which influenced the effectiveness of the algorithm seriously, a local search method named block-by-block searching algorithm was designed.
针对对算法效率有极大影响的局部搜索，设计了一种名为逐块搜索算法的局部搜索方法。
3
Many tech bloggers posted maps based on the location data logged by their iPhones, and several wrote that the data was eerily accurate, giving a block-by-block view of their activities in some cases.