PONS词典中的例句（已经编辑处理）
- Impartiality is essential to a judge.
单语范例（未经PONS编辑处理）
A ship's east-west position was essential when approaching land.
en.wikipedia.org It perceived its own involvement as essential to the solution of any major international problem.
en.wikipedia.org This refers to the essential nature of a thing or person.
en.wikipedia.org Water must be rationed, and used only for essential drinking and cooking purposes.
en.wikipedia.org Mathematics is an essential pre- requisite and pivotal element for various fields of engineering and other sciences.
en.wikipedia.org