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search; quest; pursuit
若い作家は自己を深く探求した。
The young writer deeply explored himself.
哲学者は真理の探求に生涯を捧げた。
The philosopher dedicated his life to the pursuit of truth.
チームはクリーンエネルギー貯蔵の探求を続けた。
The team continued their quest for clean energy storage.