Lung transplants are done mostly for chronic lung diseases like pulmonary fibrosis, cystic fibrosis, or COPD, chronic obstructive pulmonary disease.

肺移植主要用于治疗慢性肺部疾病，如肺纤维化、囊性纤维化或慢性阻塞性肺疾病。

The cases of 10-year-old Sarah Murnaghan and 11-year-old Javier Acosta have put a national spotlight on the issue. Both have end-stage cystic fibrosis. But they are at the bottom of a waiting list for a adult lungs because they're under 12.

10 岁的 Sarah Murnaghan 和 11 岁的 Javier Acosta 的案件使这个问题成为全国关注的焦点。两者都患有终末期囊性纤维化。但由于他们未满 12 岁，他们在成人肺部等候名单中垫底。