Yeast is a ferment .

酵母是一种发酵剂。

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As she was prepared for her maiden voyage on August 10, 1628, Stockholm was in a ferment.

1628年8月10日，她准备处女航的日子，整个斯德哥尔摩陷入了激动之中。

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Objective To carry out the studies on hygiene and safety of a ferment food "Nata de coco".

目的为研究椰子发酵食品“ 椰果”的卫生安全性。

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There is still a tremendous amount of intellectual ferment and excitement in the capitals of Russia.

当时的知识分子还是相当活跃,特别是在俄国大城市中。

耶鲁公开课 - 文学理论导论课程节选

This was a time when Hopkins led all American universities in the importing of important European scholars, and it was a place of remarkable intellectual ferment.

当时霍普金斯先于美国的其他大学,邀请重要的欧洲学者来讲学，那里也是有影响的思想动乱的源地。

耶鲁公开课 - 文学理论导论课程节选

The fourth is war, and we got peace movements in American history and anti-war fervor and ferment, of all kinds, for a very long time.

第四点是战争,我们美国历史上的和平运动,酝酿的反战情绪,诸此种种,由来已久了

耶鲁公开课 - 美国内战与重建课程节选

The 19th century emerges as a ferment of competing schemes and fantasies of European federalism, global brotherhood and world government.

ECONOMIST: How world institutions were built

There is a ferment of debate in Europe.

BBC: Europe's summer of argument

Rather as in the economic sphere competing private companies tend to produce wealth and activity, whereas monopoly firms have the opposite effect, so in the religious sphere competing sects generate a ferment of activity and increased levels of belief, whereas state churches produce indifference.

ECONOMIST: Therapy of the masses