他的纯正发音给外国朋友留下了深刻印象。

The foreign friends were impressed with his pure pronunciation.

youdao

儿童从早到晚都能听到别人在讲(母语)，而且更重要的是，听到的总是一种正确的发音、语调、用词以及语法结构的纯正语言。

A child hears it spoken from morning till night and, (what is more important), always in its genuine form, with the right pronunciation, right intonation, right use of words and right structure.

youdao

当然，说一口发音纯正的美国口语会让人认为你很牛，可是要思考思考你得付出得代价，况且还不是一定能成功。

Of course, Speaking "pure American English" may make yourself extraordinary, but you should consider the price you need to pay and the possible result of failure.

youdao