副作用的英文：
side effect

参考例句：

"But penicillin, too, has its side effects. "
不过也有副作用

Effect that occurs after its cause has gone
后遗效应;副作用

One of the side effects of this drug is the easiness of habit-forming.
这种药的副作用之一就是容易上瘾。

No doubt this is a side effect of using the disk as a virtual memory.
这无疑是用碟片当虚拟内存产生的副作用。

One of the side effects of this drug is the easiness of habit-forming
这种药的副作用之一就是容易上瘾。

It was rare for any drug to be free from occasional side effects.
对任何药物来说，全然没有任何副作用是极其罕见的。

People were concerned about possible side-effects of the jab.
人们对甲型流感疫苗注射的副作用表示担心。

Take traffic in modern city for instance, it's one side effect of civilization.
以现代城市的交通为例，这是文明的一个副作用。

Ginkgo capsule, one of the Chinese patent drugs, is a new product in new form with few side effects.
银杏叶胶囊是一种新品种、新剂型的中成药，副作用少。

A secondary action of this drug is to cause pellagra
这个药的一个副作用是会引起糙皮病。

side是什么意思：
n. 侧面；面，边；方面；一派，一方；侧旋；频道；球队
adj. 侧面的；额外的，副的，次要的
v. 支持，赞助；站在…一边

This is side kicking.
这就是侧面踢腿。

Which side are you on?
你属于哪一派？

At,on,or to the leeward side.
下风处在下风处或向下风向地

the lee; the lee side; the sheltered side
背风处

They embraced and walked away side by side.
他们互相拥抱，然后肩并肩离开了。

effect是什么意思：
n. 效果；作用；影响；印象；所有物
v. 使产生；使发生；引起

This parameter has no effect.
此参数不起作用。

The drug was of no effect.
这药无效。

The helpful effect on propellant slosh effects was a secondary consideration
推进剂晃动的有利性影响是一个次要的考虑因素。

She only dresses like that for the effect it creates/for effect.
她仅仅为了装样子才那样打扮.

The medicine was an effective purge.
这是疗效很好的泻药。