a.

1. 秃头的，秃顶的
   When he grew bald he bought a toupee.

   他头发日渐稀少，于是买了假发。

2. 无毛的，秃的
   He's as bald as a coot.

   他濯濯童山。

3. 无草木的；无树叶的
4. （织物等）磨得光光的
   Your tire is bald and unsafe.

   你的轮胎磨平了，不安全。

5. 露骨的，赤裸裸的
   This is a bald falsehood.

   这是赤裸裸的谎言。

6. 无装饰的，单调的
   He gave a bald statement of the facts.

   他对事实作了枯燥无味的陈述。

7. （马等）头部有白斑的

adj.

1. having a scalp wholly or partly lacking hair.
   ▸(of an animal) not covered by the usual fur, hair, or feathers.
2. (of a tyre) having the tread worn away.
3. (of language) plain; blunt.