We actually found there wasn't any multi-year ice at all.
事实上，我们发现这里根本没有任何冻结多年的冰层。
2
A multi-year drought in south-east Brazil is becoming worse.
巴西东南部持续多年的干旱正在恶化。
3
We'd been led to believe that we would encounter a good proportion of this older, thicker, technically multi-year ice that's been around for a few years and just gets thicker and thicker.