Also there are boundary issues involved in being a host.

而且，在宿主的身上还涉及到边界的问题。

youdao

Being a good game-show host means getting to know your contestants.

做一名优秀的电视竞赛节目主持人就意味着要了解参赛者。

《柯林斯英汉双解大词典》

Being host does bring a bigger advantage for the more physical events but China is not up to scratch in those.

成为主办国，确实会给体能要求较高的项目提供更大的优势，但那些并不是中国的强项。

youdao

So it's always balancing between the maintenance of public order, on the other hand being a real host to the fans.

BBC

What's inside the vial has an outside chance of being a miracle cure for a host of diseases.

FORBES: Rebooting the Body

Born in 1954, it has been a flagship of European co-operation from the beginning, being funded by a host of European states and staffed by exemplary multinational research teams.

ECONOMIST: Cause for conCERN?