这些数据是通过多次研究收集得来的。

These figures have been gleaned from a number of studies.

《牛津词典》

相反，可以通过多次迭代来演进可重用的资产，从而减轻这些风险。

Instead mitigate these risks by evolving the reusable asset over multiple iterations.

youdao

多年来，我参加过多次没有一次通过的认证考试。

I've taken other certification exams over the years that I did not pass the first time.

youdao