• vt. 维护，坚持；断言；主张；声称

前缀as- 同ad-. 词根ser, 连结，见series. 原指把手放在奴隶头上，宣称对奴隶所有权。 -t, 过去分词格。

assert

assert: [17] Assert comes ultimately from Latin asserere, which meant literally ‘join oneself to something’. It was a compound verb formed from the prefix ad- ‘to’ and serere ‘join’ (source of English series and serial), and it came to take on various metaphorical connotations: if one ‘joined oneself to’ a particular thing, one ‘declared one’s right to’ it, and if one ‘joined oneself to’ a particular point of view, one ‘maintained’ it, or ‘claimed’ it.

The verb was used in both these senses when English acquired it, from the Latin past participial stem assert-, but the former had more or less died out by the end of the 18th century.
=> serial, series

assert (v.)

c. 1600, "declare," from Latin assertus, past participle of asserere "claim, maintain, affirm" (see assertion). Related: Asserted; asserting. To assert oneself "stand up for one's rights" is recorded from 1879.

1. Mr. Helm plans to assert that the bill violates the First Amendment.

赫尔姆先生打算声明该法案违反了宪法第一修正案。

来自柯林斯例句

2. The defendants, who continue to assert their innocence, are expected to appeal.

各被告仍然坚称无辜，预计会提起上诉。

来自柯林斯例句

3. She continued to assert that she was innocent.

她仍然坚称自己无辜。

来自《权威词典》

4. To assert this is to denigrate the effectiveness of the police.

坚持这一点就是贬低警方的办事能力.

来自《简明英汉词典》

5. The enemy will invariably seek opportunities to assert himself.

敌人是一定要寻找机会表现他们自己的.

来自《现代汉英综合大词典》