1·Make changes to your original query one at a time, and test to see if the performance has improved (decreased response time).
一次修改原始查询的一个地方，并进行测试，以查看是否提高了性能(减少了响应时间)。
2·When his influence began to shrink, his wealth also decreased.
当他的影响缩小时，他的财富也减少了。
3·When IT professionals willingly apply valued IT assets on a regular basis, overall governance costs are decreased because less investment is required to enforce and validate usage of those assets.
当IT专业人员愿意在常规的基础上应用有价值的IT资产时，整体的治理成本减少了，因为不需要投入很多来强迫并验证那些资产的使用。
4·Summer precipitation has decreased and the increase in population has put pressure on the region's water supplies.
而夏季降水却减少了，人口也增加了，这对该区的供水也造成了压力。
5·This also decreased neurogenesis in the hippocampus.
这样之后，海马体的神经形成也减少了。