indispensable 必不可少的~tool/role-knowledge thirst is indispensable

indispensable [ˌɪndɪˈspensəbl]

adj. 不可缺少的 n.  不可缺少的人或物;

pens=expend,表示"花费,支付

dispense分配+able可以……的→dispensable可分配的→能分送出去的,不重要的

üpension

üsuspension悬挂,暂停

üessential

①China is becoming an indispensable force in the world.

②A strongthirst for knowledge is also indispensable if you want to reach acertain level of professional standards.

③Anintelligent computerwill be an indispensable diagnostic tool for doctors. 

④Steeringdevice is indispensable on an airplane.

Mr.

Bradburn

, like manyhistorians, calls George Washington the “

indispensable

 man.” He madeideas about American freedom and government real, and he showed