最近，航空公司将长期以来的标准服务——行李托运、餐食、饮品、甚至枕头和毯子——从“机票费用已含”的一类归入“额外收费”的一类，因而广受关注。
Recently, airlines have received lots of attention for moving longtime standards - baggage, food, drinks, even pillows and blankets - from the "included" pile into the "for an additional fee" pile.
真菌免疫调节蛋白是一类从大型食(药)用真菌中提取出来的具有免疫调节活性的小分子蛋白。
The fungal immunomodulatory proteins (FIPs) are a new family of micro -proteins with immunomodulatory activities extracted from several species of medical or edible mushrooms.
食肉类的尿，粪便，肛腺分泌物等从三个方面影响啮齿类：（1）抑制啮齿类的取食，引起回避反应等，尤其对植食性的啮齿类影响大，从而减少危害；
Odors of carnivore can affect rodents in three ways:(1) to depress behavior such as activity level and feeding of rodents, especially in herbivore, to reduce rodent pest;
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