1.Flint's water system was tainted with lead several years ago and many people, including children were exposed to it.
taint 污染
Rancid oil will taint the flavour.
变质的油会破坏味道 。
2.And a Boston fire truck ladder collapsed onto a three story building.
collapse倒塌
A section of the Bay Bridge had collapsed.
海湾大桥有一部分坍塌了 。