a.

1. 彻底的；完全的
   The film was a thorough success.

   这电影获得极大的成功。

   You must promise me to take a thorough rest.

   你得答应我彻底休息一下。

2. 周密的；完善的
   The doctor was very thorough in his examination of the sick child.

   医生对生病的孩子进行了仔细的检查。

3. 十足的，彻头彻尾的[B]
   He is a thorough scoundrel.

   他是一个十足的无赖。

4. （人）十分仔细的
   She is not brilliant, but she is thorough.

   她并非才华横溢，但很仔细。

adj.

1. complete with regard to every detail.
   ▸performed with or showing great care and completeness.
2. absolute; utter (used for emphasis).