deadly/fatal/mortal.导航词义：致命的

1. deadly:adj. 致命的.指事物（如疾病、武器等）致命的。

AIDS is a deadly disease.

艾滋病是一种致命的疾病。

The nuclear bomb is one type of deadly weapons.

核弹是致命武器之一。

2. fatal:adj. 致命的，灾难性的.强调死亡的不可避免性，多用于指疾病；还可指造成失败或毁灭性后果的。

This disease can prove fatal.

这种疾病可能会致命。

There was a fatal flaw in his program.

他设计的程序中有个致命的缺陷。

That young candidate suffered a fatal blow in the election.

那位年轻的候选人在大选中遭受了灾难性的打击。

3. mortal:adj. 致命的，非常危急的.主要指伤口等致命的，或情况非常危急的。

He received a mortal wound in the final battle.

他在最后一次战斗中受到了致命的重伤。

Our hotel is in mortal danger.

我们的酒店岌岌可危。

全部

1·I'm in deadly earnest.

我是非常认真的。《牛津词典》

2·Some mushrooms contain a deadly poison.

有些蘑菇含有致命毒素。《牛津词典》

3·Life in a small town could be deadly dull.

小城镇的生活可能会非常没意思。《牛津词典》

4·Both mushrooms look innocuous but are in fact deadly.

两个蘑菇看起来都无害，但实际上却能致命。《柯林斯英汉双解大词典》

5·They took him to the station and booked him for assault with a deadly weapon.

他们把他带回警察局，以使用致命武器进行攻击的罪名将他记录在案。《柯林斯英汉双解大词典》

6·The Energy Department plans to solidify the deadly waste in a high-tech billion-dollar factory.

能源部计划在一家斥资10亿美元的高科技工厂里凝固这些致命的废物。《柯林斯英汉双解大词典》

7·It is very unnerving to find out that someone you see every day is carrying a potentially deadly virus.

发现你每天都见的人携带着可能致命的病毒让人不安。《柯林斯英汉双解大词典》

8·The deadly disease is hopelessness.

绝望是一种致命的疾病。

9·Emotional upsets generate powerful and deadly toxic substances.

情绪的不安会产生强大而致命的有害物质。

10·Every day we chow down foods from plants that carry deadly toxins.

每天我们都会吃一些来自植物的食物，这些植物携带着致命的毒素。

致命

1·Some mushrooms contain a deadly poison.

有些蘑菇含有致命毒素。《牛津词典》

2·They took him to the station and booked him for assault with a deadly weapon.

他们把他带回警察局，以使用致命武器进行攻击的罪名将他记录在案。《柯林斯英汉双解大词典》

3·The Energy Department plans to solidify the deadly waste in a high-tech billion-dollar factory.

能源部计划在一家斥资10亿美元的高科技工厂里凝固这些致命的废物。《柯林斯英汉双解大词典》

4·The deadly disease is hopelessness.

绝望是一种致命的疾病。

5·Emotional upsets generate powerful and deadly toxic substances.

情绪的不安会产生强大而致命的有害物质。

致死

1·It is as if, in treating the patient, a physician has infected himself with the same deadly disease.

这就好像在治疗病人时，医生被同样的致死病毒感染一样。

2·A deadly disease described as the foot and mouth of trees is wiping out forests across the country.

一场称为树木“口蹄疫”的致死疾病正在摧毁这个国家的森林。

3·Varieties like the death cap, Destroying Angels and Deadly Webcap are highly poisonous and capable of inducing death (i.e. killing you).

比如这些种类：剧毒伞，毁灭天使和死亡帽都是剧毒的，并具有致死的危险(杀死你)。

4·Red dwarf stars have surprisingly frequent flare-ups, scientists say, and these solar flares' effects could be deadly to life on nearby planets.

科学家指出红矮星上拥有数量惊人且频繁的火焰爆发现象，并且这些太阳耀斑的产生能够使得周边行星上的生命体致死。

5·While this bird flu proves deadly to humans, killing more than half of its victims, it is kept in check by its inability to spread readily from human to human.

这“禽流感”证明对人是致死的，感染者一半以上可以被杀死，所幸它在人与人之间传播不易。

非常

1·These children deadly love to see that film.

这些孩子非常喜欢那部片子。

2·I feel deadly tired after kicking the shuttlecock.

踢毽子之后，我感到非常疲惫。

死一般的

1·The eyes were brown but with none of the warmth of that color, more a deadly tan.

眼睛是棕色的，但没有那种颜色的温暖，更多的是死一般的棕褐色。

2·There was deadly silence in the valley.

山谷里死一般的沉寂。

3·Everything was deadly still.

一切都死一般的沉寂。

4·The deadly silence kept us from speaking.

死一般的沉寂使我们不能说话。

(1)deadly poisonn. 致命毒药

(1)deadly sins不可饶恕的罪行

(1)seven deadly sins七宗罪，七大罪