In that year "a defect at the dam opened the gates, making a toxic layer of hard metals deposited at the bottom of the river come up" to the surface, she said.
就是那年，大坝的门户错误的打开，使得那些原本位于河流底部的有毒重金属层浮到了表面，她继续说道。
2
The CSS class adds a nice big hard-to-miss link at the bottom of the desktop pane.
该 CSS 类将在桌面窗格的底部添加一个漂亮的、很难忽略的较大的链接。
3
She feels it's hard to predict when the market will bottom out, just as you can't predict when a stock has "bottomed out" until it has started to rise again.