stale taste

Old, stale products not only taste bad, they are also much less effective.

旧的、过时的产品不仅口味不好，而且效果也不如现在的药茶。

It is always best to grate cheese yourself just before you use it. Packaged grated cheeses, which are sometimes made of old cheese scraps, often have a stale or rancid taste.

最好等到要用的时候再把奶酪磨碎，有些包装好的碎奶酪是用陈奶酪的碎屑制成的，会有一股腐坏变质的味儿。

Leave the talent center, breathe active air does not contact the change rapidly trend, our knowledge will taste like stale, stagnant metamorphism.

离开了人才荟萃的中心，呼吸不到思想活跃的空气，不接触日新月异的潮流，我们的知识会陈腐，趣味会像死水一般变质。