Three routes by which a chemical can enter the body are: Inhalation, Blood and Ingestion.

三条航线，其中的化学物质进入人体是：吸入，食入血和。

youdao

The efferent projections of the habenular nuclei follow three routes, the rostral, contralateral and caudal pathways.

缰核的传出投射经吻侧、对侧及尾侧三条通路。

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Fromm's Social Character Theory was established through three routes: Psychological route, Sociology route and Philosophy route.

弗洛姆的社会性格理论大厦是通过三个路径建立起来的：心理学路径、社会学路径和哲学路径。

youdao

So you have three main trade routes that cross the country, and they were used by trading caravans that would carry gold and grain and spices and textiles and other goods between Egypt and the rest of the Fertile Crescent and up into Asia Minor.

你有三条主要道路穿过这个国家，他们被通商的车队所使用,驮着金子，谷物，香料，纺织品和其他货物,在埃及与其他肥沃的伊斯兰教国家间,向上到达小亚细亚。

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With good load factors, all three routes (Edinburgh, Denver and Bangalore) are sustainable.

ECONOMIST: Business travel

Using on-street bike lanes and off-street bike trails, three routes through the New England city are perfect for peeping its autumnal colours.

BBC: In Boston, leaf peeping by bike

With two of those three routes having come up short, the third and final one becomes more important than ever.

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