The flowering of the mind can take place only when there is clear perception, objective, non-personal, unburdened by any kind of imposition upon it.

只有当我们有清晰、客观、非个人化的感知，不被强加任何的负担时，心灵的绽放才会发生。

youdao

However, research on perception training for non-native vowels is still scarce, and none of the previous vowel studies trained more than 5 vowels.

然而，迄今为止针对非母语元音感知训练的研究仍然很少，以前的元音研究中元音训练都不超过5个。

youdao

However, research on perception training for non-native vowels is still scarce, and none of the previous vowel studies trained more than 5 vowels.

然而，迄今为止针对非母语元音感知训练的研究仍然很少，以前的元音研究中元音训练都不超过5个。

youdao