Scientists on Wednesday raised the alert level for Anak Krakatoa and Tangkuban Prahu -- which regularly spew gas and rumble -- from "normal" to "warning," the middle of three alert levels.
上周三,科学家们将喀拉喀托和唐库班珀拉胡
的
戒度由“正常”提高
“
”,三级
戒的中
等级,因为这两
近来定期喷出
灰,并发出隆隆的声音。