Trevor says the thunderbirds' vegetarian diet might partly explain their size.

特雷弗说，雷鸟的素食饮食可能是其大体型的原因之一。

Americans define a vegetarian diet in several ways.

美国人以多种方式定义素食。

Now, this can be partly remedied by everyone adopting a vegetarian diet, and reclaiming the land to grow more crops instead of raising livestock.

现在， 这可以通过每个人都采用素食来部分补救，并开垦土地以种植更多的农作物而不是饲养牲畜。

Carnitine supplements can still be beneficial, but only in populations that might suffer from carnitine deficiencies, particularly those on a vegan or vegetarian diet, those on an extreme calorie deficit, or the elderly.

肉毒碱补充剂仍然是有益的，但只适用于可能患有肉毒碱缺乏症的人群，特别是那些素食者，那些极度缺乏热量的人，或老年人。