But Mark Zandi at Moody's Economy.com warns the recovery may be fragile.

VOA: standard.2010.01.29

That depends on how much sleep you get but dreams leave fragile memories. They fade quickly.

这要取决于你一晚睡多长时间,梦境会留下一些若有若无的记忆，而且很快会淡忘。

耶鲁公开课 - 心理学导论课程节选

"He was in Vancouver earlier this year." "He looked a little fragile, but he was there and I think he always enjoyed the Olympic games - why not?

VOA: standard.2010.04.21

But,she warns this progress is fragile. She says the momentum for health development could come to a grinding halt because of problems stemming from the food and financial crises, the changing climate and the H1N1 influenza pandemic.

VOA: standard.2009.12.29