in-,不，非，-tact,接触，词源同tact,contact.即没有接触的，引申词义完整的。

1. Most of the house remains intact even after two hundred years.

虽然过了两百年，这房子的大部分还保持完好。

2. He can scarcely survive this scandal with his reputation intact.

他经此丑闻名誉很难不受损.

3. When a bird's nest is overturned, no egg can remain intact.

覆巢之下无完卵.

4. Despite his misfortunes, his faith and optimism remained intact.

虽然他遭到一连串的不幸, 他的信心和乐观丝毫未减.

5. The glasses remained intact after being dropped.

眼镜坠地后依然完好无损.