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this
last (couple of years, etc.); these; past; this
you (as in "you liar")
斯の問題は難しいね。
This problem is difficult, isn't it?
斯の辺りは昔とだいぶ変わった。
This area has changed quite a bit from before.
斯の度はお世話になりまして誠にありがとうございます。
Thank you very much for your help on this occasion.