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often; frequently; now and then; occasionally
彼は会社にちょくちょく遅刻してくる。
He often comes late to the company.
私はちょくちょくあの店に顔を出します。
I frequently show my face at that store.
最近ちょくちょく同じミスが多いね。
You've been making the same mistakes often lately.