in-,不，非，destructible,可破坏的。

1. This type of plastic is almost indestructible.

这种塑料几乎牢不可破。

2. Molded plastic is almost indestructible, but scuffs easily.

注塑几乎弄不坏，但是容易磨损。

3. plastic containers that are virtually indestructible

几乎不可毁坏的塑料容器

4. Nothing holds it together except an idea which is indestructible.

把它团结在一起的,只不过是一个不可摧毁的思想.

5. The human spirit is virtually indestructible.

人的精神实际上是不可摧毁的。