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this and that; this or that; one thing or another; this way and that
around; about; round about; roughly; nearly; almost
彼是考えすぎて決められなかった。
I couldn't decide because I thought too much about this and that.
彼女は彼是と細かい文句を言い始めた。
She started complaining about this and that.
彼是悩まずにまず行動してみよう。
Let's act first without worrying about this and that.