例句 These findings may seem discouraging, but it was heartening for scientists to learn that the critical period for fluent language acquisition might be

longer than previously thought.【2018-5《时代周刊》】

这些结果或许看上去令人沮丧，但对科学家来说，得知流利语言习

得的关键期可能比之前认为的要长，是一件鼓舞人心的事。