他一再请求帮助。
tā yīzài qǐngqiú bāngzhù 。
He repeatedly requested help.
我一再告诉你要小心。
wǒ yīzài gàosù nǐyào xiǎoxīn 。
I repeatedly told you to be careful.
她一再强调这个问题的重要性。
tā yīzài qiángdiào zhègè wèntí de zhòngyàoxìng 。
She repeatedly emphasized the importance of this issue.