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to become confused (disconcerted, disorganized, disorganised); to be flustered; to panic
to hurry; to rush; to hasten
周章てると忘れ物をしやすくなる。
When you panic, you're more likely to forget things.
地震が来て周章てて外に飛び出した。
An earthquake hit and I panicked and rushed outside.
突然の来客に母は周章てた。
My mother was flustered by the unexpected visitor.