如何使用 "oil" 造句

1. Oil markets are particularly tight .
石油市场目前尤为紧张。
2. Oil prices have also fallen .
石油价格也出现下跌。
3. The first problem is oil .
第一个麻烦是石油。
4. One possible culprit was oil .
罪魁祸首之一可能是石油。
5. Where does america get oil ?
美国从哪里获取石油?