a thick line的用法和样例：
- A thick line of police were nearer to United's fans than Roma's, who were being overseen by local stewards.
- He shored up the wall with a thick balk of wood.
- My father will give me a thick ear if I tell a lie.
- Behave yourself or I'll give you a thick ear!
- You need a thick skin to be a politician.
a thick line的相关资料：