在火山爆发与随后的崩塌过程中，火山物质不断积累，它的高度经常发生变化。

Its height often changes when volcanic material accumulates during eruptions and subsequently collapses.

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老师们也不断报告自己能力欠缺，无法满足小学生们的精神健康需求，并且经常提到缺乏来自英国国家医疗服务体系的训练、专业知识培训以及支持。

Teachers also consistently report how ill-equipped they feel to meet pupils' mental health needs, and often cite a lack of training, expertise and support from the National Health Service.

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不管已经有多少人的担忧被巧妙地说了出来，还是会有更多的担忧不断涌现，这是经常发生的 事情。

This is often the case when, no matter how many individual concerns raised are neatly addressed, more concerns continue to surface.

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