Dr Liang-Dar Hwang said: Bitter taste perception is shaped not only by genetics, but also environmental factors.

Liang-Dar Hwang博士称：“苦味直觉不仅仅由基因决定，还有环境因素。

Imagine researchers were doing a study on how ethnic background affects taste perception with samples in Brazil, the UK, India, and Japan.

想象一下，研究人员正在对巴西、英国、印度和日本的样本进行种族背景如何影响味觉的研究。