translation.en: Well, all stresses, particularly drought stress, results in the formation of free radicals, or reactive oxygen species, which are highly damaging and can cause crop death.
translation.zh: 所有的压力 尤其是干旱的压力 都会形成自由基 也就是活性氧。 活性氧极具破坏力 会直接导致植物死亡。