よぼうせんは 予防線を張る Show inflections LinksSentence search for 予防線を張るSentence search for よぼうせんをはるSentence search for 予防線をはるKanji details for 予, 防, 線 and 張Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'ru' ending1. to take precautions; to set a guard against attackOther forms予防線をはる 【よぼうせんをはる】 Discussions Log in to talk about this word.