There are numerous ________ reports that natural vitamins are superior to synthetic ones, that fertilized eggs are nutritionally superior to unfertilized eggs, that untreated grains are better than fumigated grains, and the like.
句意： 有许多未经证实的报道说， 天然维生素优于人造维生素， 受精鸡蛋比未受精的鸡蛋营养价值更高， 未经处理的谷物比熏制过的谷物好等等。
unsubstantiated未经证实的。 unbelievable不可置信的。 uncontested无竞争的； 无异议的。 unpopular不受欢迎的。