invaluable是什么意思

双语用例

• Several of the reports showed how such systems would be invaluable for disabled people.

• Knowing how things were done in the past is invaluable.

• This will be an invaluable text for teachers of foreign languages, those responsible for training teachers and applied linguists.

• There are useful tutorial-like worked examples in several places and these will surely be invaluable to the intended audience.

• It is an invaluable source of reference material that, once discovered, will be frequently referred to.

• Their broad knowledge and excellent judgement have been invaluable in evaluating and editing manuscripts for the journal over many, many years.

• We warmly thank all our questionnaire and interview respondents and the many expatriate and local entrepreneurs and officials who provided invaluable information.

• Further work on the behavior of this species will be invaluable in interpreting functional adaptations in the visual system of this living fossil.