277. While there's no question that continuous stress is harmful, several studies suggest that challenging situations in which you're able to rise to the occasion can be good for you.

译文

尽管人们对持续的压力有害健康的观点不加怀疑，却有几项研究表明，如果你能在富有挑战性的境遇中随机应变，这种境遇将对你有好处。

点睛

本句的主干是studies suggest that。while引导的是让步状语从句，其中that引导的是主语从句；主句中that引导的是suggest的宾语从句，其中in which引导的in which you're able to rise to the occasion是situations的定语从句。

there's no question的意思是“毫无疑问”。如：

He's the best; there is no question about it. 他是最棒的，这毫无疑问。

rise to the occasion的意思是“善于处理突如其来的困难，随机应变”。

be good for的意思是“对……有益的，有帮助的”。如：

Regular exercises are good for your health. 坚持运动有益健康。

考点归纳

while常见用法如下：

用于引导时间状语从句，意为“当……时”。如：

We arrived while they were having dinner. 他们吃饭的时候，我们到了。

用于引导让步状语从句，意为“虽然，尽管”。如：

While she is just a little girl, she can be extremely difficult to deal with. 她尽管只是个小女孩，却也很难对付。

用作转折连词，意为“而，却”。如：

Lisa is good at science, while her sister is good at literature. 莉萨擅长理科，而她的妹妹则擅长文学。