Usages of kenkyuusya
将来 私 は 科学 の 研究者 に なりたい です。syourai watasi ha kagaku no kenkyuusya ni naritai desu.
In the future I want to become a science researcher.
私 の 友達 は 研究者 です。watasi no tomodati ha kenkyuusya desu.
My friend is a researcher.
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