And she often wondered what it might be doing to her unborn child.
她时常担心这会对她未出生的孩子产生什么影响。
But new research finds that frogs might be doing even worse than we thought.
但是新的研究发现青蛙的实际情况或许要我们想像的还糟糕。
It often takes a disaster to make us realize that we might be doing things wrong.
通常只在灾难发生后才让我们意识到我们可能哪里做错了。