Chinese is isolated language while Japanese is agglutinative language.

汉语是孤立语，而日语是粘着语。

youdao

The transformation of sound is not an isolated language phenomenon, which would be restricted by the relation of sound and meaning, the language system and the consonant or an internal syllable.

音转不是一种孤立的语言现象，发生音转的字词往往要受到音义关系、语言系统以及一个音节内部声或韵的制约。

youdao

The only contact with the foreign Trailmen is through trade conducted once a year in silence and by sign language, since the isolated tribes are thought to have no common language.

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"If the damage is isolated to the left side, language would be the biggest potential problem, " he said.

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John Okono, 28, came to the UK from Nigeria - an English-speaking country - three years ago and can see how some of the immigrant friends he has made have become isolated because of a lack of language skills.

BBC: Sheraz Ahmed