He tends to sit on the fence at meetings.

开会时他往往持观望态度。

《牛津词典》

When Jane and Tom argue, it is best to sit on the fence and not make either of them angry.

当简和汤姆争吵时，最好保持中立，不要忍到其中任何一个人。

youdao

Twitter does have enough cash now to execute on a revenue plan and outlast acquirers who like to sit on the fence.

Twitter现在的确有足够的现金执行一个盈利计划，和那些脚踏两只船的收购者奉陪到底。

youdao

But there is no reason to sit on the diplomatic fence.

ECONOMIST: South American dreams

It would also highlight the fact that a country that has remained silently "friendly" to the US can no longer sit on the fence, quietly benefiting from its arrangement with the superpower.

BBC: Ireland suffers identity crisis over neutrality

Only 16 states have agreed to set up Exchanges, while nearly an equal number have refused to do so and many others sit on the fence.

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