Experience without learning is better than learning without experience.
亀の甲より年の功。
In severe cases, cracks can form or it can snap apart.
ひどくなると、亀裂が生じたり、断裂することもあります。
"Just now, you were looking. You Peeping Tom,"she said angrily.
彼女が『今、覗いてたでしょう。この出歯亀野郎。』と怒りました。
Also cracks may form in buildings that aren't Earthquake proof.
耐震性の悪い建物に亀裂が生じることもある。
Soviet and Western observers have warned that if the Muslim republics do not join the commonwealth, they may from a separate group, setting up a volatile ethnic and religious split.
