突变的英文：
sudden change
mutation

参考例句：

Mutation in gene
基因的突变

The weather changed, and a storm of thunder and lightning ensued.
天气突变，来了一场雷电交加的暴雨。

A snap or light blow made by pressing a fingertip against the thumb and suddenly releasing it.
弹指，轻击用一指尖压于拇指之下，然后突然松开的突变或轻轻一击。

Base substitution mutation
碱基置换突变

sporadic(al)mutation
【生】自然突变

"The mutation was corrected," said Alexeev
"突变被纠正了，毛发就变黑了。

I was struck By the sudden change in his Behavior.
我对他行为的突变而感到震惊

To mutate or change morphologically,often reversibly.
突变，变异经受突变或形态上的改变，常为可逆地

Iraq woes have dogged Bush throughout his August break.
伊拉克为整个八月突变中的顽固布什而感到悲哀。

The consolidated areas were usually plum colored, lobular, and localized.
突变病区，通常是葡萄干色，小叶性的和局部性的。

sudden是什么意思：
adj. 突然的，意外的；快速的
n. 突然发生的事

A sudden loud blow or bump.
砰然作响发出砰一声的猛击或猛撞

A sudden, striking surprise;a twist.
意外发展突然的、惊人的变化；意想不到的转折

Hasty climbers have sudden falls
大起者有大落

change是什么意思：
n. 变化；交换，交替；零钱
v. 改变；交换，替换；兑换；更换

change a bed;change the baby.
换床单；给婴儿换尿布

We propose 'a change [making a change / to make a change / that a change should be made].
我们建议应做一点改变。

The change of quantity can causes the change of quality.
量变可以引发质变。

mutation是什么意思：
n. 变化；突变

The process by which some microbes differentiate or mutate
离异，分离变异一些微生物变异或经历突变的过程

It was impervious to the shocks and mutations of timeDit was an emblem of time itself
它不受时代的冲击或变迁的影响，它自己就是时间的象征。

The process by which some microbes differentiate or mutate.
离异，分离变异一些微生物变异或经历突变的过程