There have been reports of poultry die off in her village.

有报道称，病人所在的村庄有家禽死亡情况。

Without the gel, scientists say, the bacteria die off.

科学家说，如果没有这种凝胶，细菌将无法存活。

If its stem cells are eradicated, the rest of a tumour may die off.

如果癌症的干细胞被消灭了，其他的肿瘤组织或许会死掉。

If sharks die off, you could have a food chain Whac-a-Mole, scientists say.

科学家说，如果鲨鱼灭绝，就会象“打地鼠”游戏一样引发食物链的崩溃。