souring

v.

（使某物）变酸，变馊， （使某人）阴郁( sour的现在分词 )；关系、态度、人等（使）变坏，恶化；

sweet and sour酸甜；苦乐；糖醋调味的

sour cream酸奶油

sour gas含硫气；酸气

sour water酸性污水

sour milk酸乳；酸腐的牛奶

sour crude含硫原油；酸性原油

sour taste酸味；口酸

sour someone on[美国英语]使某人对…表示反感

sour cherry酸樱桃；欧洲酸樱桃

sour crude oil酸性原油，含硫原油

sour grape酸葡萄（形容妒忌而贬低自己得不到的东西）

go sour不再受欢迎；出漏子；变酸

sour orange酸橙；苦橙

1. The hot weather has soured the milk.
   炎热的天气使牛奶变酸了。
2. He loves humongous baked potato piled high with sour cream.
   他酷爱堆积如山的烤马铃薯加酸奶油。
3. Most green fruits are sour.
   大多数未熟的水果都是酸的。
4. The old man has been soured by poverty.
   那老人因贫困而变得乖戾了。

Gas souring by thermochemical sulfate reduction at 140°C
Biological souring and mitigation in oil reservoirs.
Gas Souring by Thermochemical Sulfate Reduction at 140°C: Discussion
Impact of iceberg souring on polar benthic habitats. Mar Ecol Prog Ser
Corrosion risk associated with microbial souring control using nitrate or nitrite
Monitoring of microbial souring in chemically treated, produced-water biofilm systems using molecular techniques
Impact of Nitrate-Mediated Microbial Control of Souring in Oil Reservoirs on the Extent of Corrosion
Oil Field Souring Control by Nitrate-Reducing Sulfurospirillum spp. That Outcompete Sulfate-Reducing Bacteria for Organic Electron ...
Effect of period of maize fermentation and souring on chemical properties and amylograph pasting viscosity of ogi
Microbial community succession in a bioreactor modeling a souring low-temperature oil reservoir subjected to nitrate injection