The subject of a sentence and its verb must agree in number.

句子的主语和动词的数必须一致。

《牛津词典》

Their participation is subject to a number of important provisos.

他们的参与受一些重要条款的限制。

《牛津词典》

Their initial task was to decide which of the many forest problems of concern to Europe involved the largest number of countries and might be the subject of joint action.

他们的初步任务是决定在欧洲关心的许多森林问题中，哪些问题涉及了最多的国家，需要联合各国采取行动来解决。

youdao

He was long in choosing the subject of his heroic song and, as we know from all of -- and we've encountered a number of them - all of those protestations of delay Milton began his epic late.

他久久未能确定他要写的英雄之歌的主题，这我们从从弥尔顿多次声言,自己的史诗动笔很晚就能看出。

耶鲁公开课 - 弥尔顿课程节选

What about premise number three, "All purely physical systems are subject to determinism."

来说说前提三吧,所有纯粹的物理体系都遵从决定论

耶鲁公开课 - 死亡课程节选

Caithness, Sutherland and Easter Ross planning committee approved the plans subject to a number of conditions.

BBC: Potatoes

First Great Western trains have been subject to a number of alterations and delays, with some routes cancelled.

BBC: Snow latest across the UK

The disciplines that are the subject of greatest number of publications in the world are economics and psychology.

UNESCO: MEDIA SERVICES