a week's growth of beard的用法和样例：
- He had a week's growth of beard on his face.
- The growth of beard direction also is because of the person different, but, when blowing Adam's apple place must special caution, come slowly, fasten anxious.
- The growth of violent crime is a very real problem.
- The man who appears at a party or a reception in a not-too-clean plaid shirt, without tie, or at a business meeting with a two-days growth of beard will never be mistaken for an absent-minded genius.
- The growth of successive layers of a cell wall.