definite

adj.

1. 明确的, 确切的
   • We demand a definite answer.
     我们要求明确的答案。
2. 一定的, 肯定的
   • The doctor is quite definite about Tom having measles.
     医生十分肯定汤姆得了麻疹。
   • It's definite that he will come to help us.
     他肯定会来帮助我们。