The pig is the main host.

该病以猪主要宿主。

youdao

The Huangpo Fault is as the passage - way for its ore fluid and the sub - order NNE - trending fault zone acts as the main host.

黄-破断裂是其主要的导矿构造，其次级低序次NNE向断裂带是主要的容矿构造。

youdao

The Tanlu ductile brittle shear zone is the major structure as passageway for ore fluid and its secondary faults are the main host.

郯庐韧—脆性剪切带是主要的导矿构造，其次级断裂是主要容矿场所。

youdao

Wales have hosted games in three Rugby World Cups as the Welsh Rugby Union aided England in 1991 and France in 2007 as well as being main host in 1999.

BBC: Wales confirm World Cup bid plans

One of BBC Sport's most versatile performers, John Inverdale is your main TV host along with Sue Barker at this year's Championships.

BBC: John Inverdale

Away from the main event and a host of other contenders, including Danilo di Luca and Giro d'Italia winner Damiano Cunego, there will be plenty of other action.

BBC: Top names primed for Vuelta