予防線
よぼうせん
- defensive perimeter; defence line; defense line; defensive measures n
- precaution; safeguard; safety measure n
よぼうせん
ヨ • シャ
あらかじ.め
beforehand; previous; myself; I
ボウ
ふせ.ぐ
ward off; defend; protect; resist
セン
すじ
line; track
よぼうせんをはる