While feeding on citrus leaves, the bug infests them with bacteria that clog the tree's capillary system, slowly choking it to death.

以柑橘叶为食的这种小虫子自身携带的细菌会堵塞树的毛细管系统, 导致树木慢慢窒息死亡。

Unlike us, trees don't have blood and bones to protect them from outside attacks, so how exactly does a tree's immune system work?

与我们不同，树木没有血液和骨骼来保护它们免受外界攻击，那么树木的免疫系统究竟是如何工作的呢？

Cold weather also means that water in the tree's plumbing system freezes and dangerous bubbles form in the ice from gases that were previously dissolved in the liquid water.

寒冷的天气也意味着树的管道系统中的水会结冰，冰中会形成危险的气泡，这些气泡是之前溶解在液态水中的气体。