例句與造句

1. the most common recurrent period was within 2 years after surgical resection
   通常肺癌病人手術(shù)后復(fù)發(fā)多發(fā)生在手術(shù)后的前一，二年之內(nèi)最容易見(jiàn)到。
2. It's difficult to find recurrent period in a sentence. 用recurrent period造句挺難的