"But the active ingredient in the nest is very minuscule, and it is difficult to extract. Only when the active ingredient is more clearly identified and synthesized will there be any possibility of having an impact on the disease.
「但燕窩當中真正有效的成分，也是很微量，且不易提取，只有更確實找出有效成分，進而合成，才可能對疾病產生明顯的作用。