tertiary(ie very severe)burns
三度烧伤（极严重的）.
I view his conduct in the gravest light.
我以极严重的态度看待他的行为。
The problem has become extremely serious.
这个问题现在已到了极严重的程度。
She has made a grievous mistake.
她犯了一个极严重的错误。
a crushing sorrow [blow]
极度的悲哀 [严重的打击]
This is a most serious and vital struggle.
这是一个极严重极紧要的斗争。
be in(dire/desperate/serious)financial straits
陷于（恶劣的[极度的/严重的]）财务困境中.
The effect of mining on water pollution was especially significant.
开矿引起水污染的后果极其严重。
A small number of individuals with SARS who are very sick can be very infectious.
一些严重病人可能具有极强的传染性。
In Sexual harassment is an exceptionally harmful infringement into the personal sphere.
性骚扰是对个人生活极为严重的侵犯
The exposure is extreme.
外露情况极端严重。
Her confusion was exacerbated by her injuries, which made her susceptible to mood swings.
克瑞基特的情绪极易波动，她的困惑更严重了。
The state or condition of being an idiot;profound mental retardation.
智力障碍处于痴呆的状态；极其严重的智力障碍
There is no alleviating of your injury; Your wound is grievous.
19你的损伤无法医治，你的创伤极其严重。
Islamic Power of Extremes: Its Grave Influence on the Stability of Central Asia
严重影响中亚地区稳定的伊斯兰极端势力
The death penalty is only to be applied to criminal elements who commit the most heinous crimes.
死刑只适用于罪行极其严重的犯罪分子。
They disclose a most grave and as yet unexplained tendency.
它们揭露了一种极其严重迄今尚难解释的倾向。
Should they fall through in their present plans, the consequences will be fatal.
他们现在的计划一旦落空，后果将极为严重。