The old are apt to catch a cold.

老人患冒。

You are in danger of catching cold.

你有患冒的危险。

In his weakened condition, he is very susceptible to cold.

他身体弱, 因此患冒。

Children are liable to catch cold.

小孩患冒。

She is prone to colds.

她患冒。

Fatigue predispose to colds.

疲人患冒。

Fatigue predisposes one to colds.

疲人患冒。