"确言"（queyan）是指明确地表达意见或主张，或指明确地讲出真相、事实。在英文中，可以用 "assert" 来表示这个意思。
"Assert" 是一个动词，来源于拉丁文 "assertus"，意思是 "维护、主张、坚持"。
例句：
She asserted that she was innocent. (她坚称自己是清白的。)
He asserted his authority over the team. (他主张对这个团队有权威。)
The scientist asserted that the theory was supported by strong evidence. (科学家确认这个理论有强有力的证据支持。)
"Assert" 是一个动词，来源于拉丁文 "assertus"，意思是 "维护、主张、坚持"。
例句：
She asserted that she was innocent. (她坚称自己是清白的。)
He asserted his authority over the team. (他主张对这个团队有权威。)
The scientist asserted that the theory was supported by strong evidence. (科学家确认这个理论有强有力的证据支持。)