广告公司经常制作替代广告或在报纸、电视台等预先测试的广告。
Agencies often produce alternative ads or commercials that are pretested in newspapers, television stations, etc.
学生们称石田先生为“宝塔教授”，因为他对宝塔的研究非常热忱。石田制作了一系列模型，并在自己实验室的“振动台”上对它们进行了测试。
Mr Ishida, known to his students as "Professor Pagoda" because of his passion to understand the pagoda, has built a series of models and tested them on a "shake-table" in his laboratory.
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