形容词
1. A commercial college teaches things that would be useful in business.
商学院教授那些在商业中可能会有用的东西。
2.
2. Oil has been found in commercial quantities.
发现了大量有商业价值的石油。
名词
1. The TV show was interrupted by too many commercials.
那文件电视节目插进的商业广告太多了，不断被打断。