警戒

There is a tight security cordon around the area.

这一地区周围设有严密安全警戒圈。

With Tirol before it, the motley battlewagon went on combat alert.

在泰洛行星周围，各种战舰处于战斗警戒状态。

Strikers were enjoined from picketing.

罢工者被警戒禁止。

The sentry is on guard.

那哨兵在担任警戒。

Stalwart policemen stood guard outside.

强壮警察在外面警戒。

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

她能通过最严密安全警戒系统，能直接到，她害怕去那里。

Iraqi security forces were placed on high alert and American aircraft —unpiloted reconnaissance drones flying low, and fighter jets roaring high above —crossed the capital.

伊拉克安全部队处于高警戒状态，美国空军在首都上空穿梭，无人驾驶侦察机低空飞行，战斗喷气机高空呼啸。

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火山和唐库班珀拉胡火山警戒度由“正常”提高到“警告”，三级警戒中间等级，因为这两座火山近来定期喷出火山灰，并发出隆隆声音。