警戒的

There is a tight security cordon around the area.

这一地区周围设有严密的安圈。

She can walk through the tightest security check point.She can directly go to Uplight's office.But she was feared to do so.

她能通过最严密的安系统，能直接到兰皮的办公室，但她害怕去那里。

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，科学家们将喀拉喀山和唐库班珀拉胡山的度由“正常”提高到“告”，三级的中间等级，因为这两座山近来定期山灰，并发隆隆的声音。