Most of the time, the eruption is confined to the skin, but it can also affect the eyes and cause blindness. Patients can also develop a chronic pain syndrome that can be difficult to treat.

大多时候，病变只局限于皮肤，但也能影响到眼睛，甚至造成视力丧失，另外，有时还可遗留慢性疼痛症状，变得难以治疗。

youdao

Japan's disaster prevention department is also difficult to judge whether the evolution of the volcanic eruption of large-scale violent eruption, but the local residents there have been tensions.

日本防灾部门现在还难以判断，这次的火山喷发是否会演变为大规模的剧烈喷发，但是附近居民已经出现了紧张情绪。

youdao

In seems to be difficult to explain why eruption occurred in the liquid-liquid system and was not detected in the present gas-liquid systems. This problem should be studied more precisely.

在似乎是难以解释为什么喷发发生在液液系统，并没有发现在目前的气液系统，这个问题应该研究更准确。

youdao

"Because there are only a couple of previous records of eruption at this particular volcano, it is difficult to judge either how long the activity will go on there, or how long the volcano might then be dormant before it goes active again."

VOA: standard.2010.04.15