assertion

n.

1. 有力的声言或陈词; 坚持
   • The assertion of the right to freedom is very important to all peoples.
     维护自由权利对各民族来说都是至关重要的。
2. 强硬陈词; 断言
   • He made an assertion that he was not responsible for it.
     他硬说, 他对此事没有责任。