A child's brain is not fully developed, and highly vulnerable to chemicals.

The death of a police officer is always a reminder to other officers and their families that they are highly vulnerable.

Inside one hundred yards, even prone men were highly vulnerable.

If anyone needed support from the government it was these highly vulnerable individuals.

By the end of the eighteenth century, this position was beginning to be highly vulnerable.

The network is highly vulnerable to its many weak links.

In practice, the weapon system was highly vulnerable to enemy fire.

This left them highly vulnerable to harvest failures such as those of 1891 and 1901.

They can cause massive damage to these highly vulnerable species.

This is especially important among highly vulnerable social groups and for secondary school students.