The Hes tour alone could be considered a $5 billion G D P type tour.

仅 Hes 巡演就可以被视为价值 50 亿美元的 G D P 型巡演。

Those tongue diagrams date back to the early 1900s, when German scientist D. P. Hanig tried to measure the sensitivity of different areas for salty, sweet, sour, and bitter.

这些舌头图可以追溯到 20 世纪初，当时德国科学家 D. P.Hanig 试图测量不同区域对咸、甜、酸和苦的敏感性。