不純物が入り込むのを防ぐ必要がある。
It is necessary to prevent impurities from getting in.
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Handwriting
Example sentences
By wearing a mask, you can prevent the spread of the virus.
敵軍の攻撃を防ぐために、援軍が派遣された。
Reinforcements were dispatched to prevent the enemy army's attack.
兵士は盾を構えて、敵の攻撃を必死に防いだ。
The soldier held his shield and desperately fended off the enemy's attack.
汚れを防ぐために、ソファにカバーをかぶせた。
I put a cover on the sofa to prevent dirt.
ウイルスが広がるのを防ぐため、患者を隔離した。
Patients were isolated to prevent the spread of the virus.
ウイルスの感染拡大を防ぐためにマスクを着用する。
Wear a mask to prevent the spread of virus infection.
天災は不可抗力であり、誰にも防げない。
Natural disasters are force majeure and cannot be prevented by anyone.
その城は外敵の侵入を防ぐために築かれた。
The castle was built to defend against external enemies.
病気の再発を防ぐために、定期的な検査が必要です
Regular check-ups are necessary to prevent the recurrence of the illness.
Usage Notes
Refers to stopping something undesirable from entering or occurring.
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