That cut is taking a long time to heal.

那伤口需要很长时间才能愈合。

《牛津词典》

For example, epoxy compounds can heal surfaces if they get cut - in just the same way that a scab forms if skin gets cut.

例如，环氧化合物可以在割开后修复表面——就像是皮肤割开后愈合那样。

youdao

The launch this week of a service to cut the level of capital at risk by batching trades in a process called "compression" is another encouraging sign that the market can heal itself.

本周启动的、旨在通过限额交易亦即所谓“压缩”流程削低风险资产水平的服务是市场能自我修复的另一鼓舞人心的迹象。

youdao

Short term inflammation is necessary for us to heal after a cut or an infection, but if the inflammation persists in the long-term it can contribute towards cardiovascular disease and cancer.

BBC: Why does being lonely make you ill?

The 105th Archbishop of Canterbury has his work cut out to heal the bitter divisions in the global Anglican Communion, which are nowhere more apparent than over the fraught issue of homosexuality.

BBC: Archbishop of Canterbury Justin Welby: World reaction