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but; however; although
行きいきたいけれど時間じかんがない。
I want to go but I don't have time.
高いたかいけれど品質ひんしつはいいです。
It's expensive but the quality is good.
難しいむずかしいけれど挑戦ちょうせんしてみる。
It's difficult but I'll try.