TASK DEFINITION: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
PROBLEM: Whereas rodents have gnawing incisors that grow throughout life , the teeth of shrews wear down throughout life , a problem made more extreme because they lose their milk teeth before birth , so have only one set of teeth throughout their lifetimes .

SOLUTION: Unlike rodents , which have gnawing incisors that grow throughout life , the teeth of shrews wear down throughout life , and they lose their milk teeth before birth .

PROBLEM: " China syndrome " is a fanciful term not intended to be taken literally that describes a fictional result of a nuclear meltdown , where reactor components melt through their containment structures and into the underlying earth , " all the way to China . "

SOLUTION: The term " China syndrome " refers to a scenario , not meant to be taken literally , where a reactor core could melt through the Earth " all the way to China " .

PROBLEM: Ric Flair 's " Career Threatening " match against Shawn Michaels was next , which stipulated that Flair would have to retire from wrestling if he had lost .

SOLUTION:
Ric Flair put his career on the line next against Shawn Michaels .