紧急的英文：
urgent

She braked suddenly and avoided an accident.
她紧急煞车,避免了一场车祸。

You'd better express the letter; it's urgent.
你还是快递那封信为好;那是很紧急的。

He needed emergency surgery to remove a blood clot from his brain.
需要进行紧急手术以清除脑部的一处血块。

(fml)Rarely did she request help but this was a matter of urgency.
她很少求助于人,这事却是十分紧急.

The city lifted its snow emergency Monday evening and public transit operated with only minor hitches Tuesday.
该市周一晚上启动了雪灾紧急预警，周二公共交通系统有些轻微舒缓，并得以运行。

Emergency cooling systems could fail and a reactor meltdown could occur.
紧急冷却系统有可能失灵，核反应堆有可能发生堆芯熔毁。

Having a cell phone also makes us feel safer, since we can call for help in case of an emergency.
拥有手机同时使我们有安全感，因为在紧急情况下我们可以通过手机求救。

To make an emergency exit from an aircraft by deployment of an ejection seat or capsule.
弹射出利用弹射座椅或弹射座舱从飞行器紧急出口弹射出来。

The destroyer Barrosa and sea tug Giant scurried in with 3500 gallons of detergent.
驱逐舰巴罗萨号和海上拖船巨人号载着3500加仑清洁剂紧急驶往出事海区。

In an emergency; in a desperate situation
在紧急的时候

The money was most urgently required.
钱要得很急。

Something urgent have come up.
发生了紧急的事情。

An urgent message was radioed to us this evening.
紧急消息是今晚用无线电传送给我们的。

Her voice was suddenly hard and urgent.
帕 梅 拉 的 声 音 忽 然 变 得 迫 切 而 生 硬 。

She was speaking to him in an urgent voice.
她正急迫地跟他说话。