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to load (with goods, cargo); to put on board; to stow aboard
トラックに荷物を全部積み込んだ。
All the luggage was loaded onto the truck.
港で作業員が船に荷物を積み込んでいる。
Workers at the port are loading cargo onto the ship.
荷台に資材を積み込む前に固定用のロープを用意した。
I prepared securing ropes before loading materials onto the flatbed.