Adjective:

1. not causing or capable of causing harm;

   "harmless bacteria"
   "rendered the bomb harmless"
   

1.无害的;（尤指对健康）不造成伤害的
Something that isharmless does not have any bad effects, especially on people's health.

e.g. Industry has been working at developingharmless substitutes for these gases...
该行业一直在努力开发一些可以替代这些气体的无害物质。
e.g. This experiment washarmless to the animals.
这个试验不会对动物造成伤害。

harmlessly
Another missile exploded harmlessly outside the town.
又一枚导弹在城外爆炸，没有造成任何伤害。

2.无关紧要的;不讨人厌的;不会惹麻烦的
If you describe someone or something asharmless, you mean that they are not important and therefore unlikely to annoy other people or cause trouble.

e.g. He seemedharmless enough...
他看起来不会惹什么麻烦。
e.g. I would not want to deny them aharmless pleasure.
我不想剥夺他们这点无伤大雅的乐趣。

harmlessly
It started harmlessly enough, with a statement from the Secretary of State for Social Security.
开始时并没有什么重要内容，由社会保障大臣作了一个发言。

1. 無害的:降低疾病致命性：Stealthy秘密的:降低疾病明顯性. |harmless無害的:降低疾病致命性. | Immune免疫的:疾病能免疫各種疫苗.

2.

2. 无恶意的：H:hairless无毛发的 |harmless无恶意的 | headless无知的,无头的

• She bears him harmless of all suspicion.

  出自：C. Clarke

She developed a few harmless eccentricities.

她逐渐养成一些无害的癖性。

No cigarette is completely harmless.

没有香烟是完全无害的。

I made a harmless remark to some guy at the bar and he swung at me.

在酒吧里我向某个家伙说了句无恶意的话，他就向我打了一拳。

The bomb blast killed several harmless passers-by.

炸弹爆炸使几个无辜行人受伤。

The missile fell harmlessly into the sea.

导弹落到了海里，没有导致任何伤害。

It's just a bit of harmless fun.

开个小玩笑罢了，并无恶意的。

The bacteria are harmless to humans.

这些细菌对人无害。

Industry has been working at developing harmless substitutes for these gases...

该行业一直在努力开发一些可以替代这些气体的无害物质。

This experiment was harmless to the animals.

这个试验不会对动物造成伤害。

He seemed harmless enough...

他看起来不会惹什么麻烦。

I would not want to deny them a harmless pleasure.

我不想剥夺他们这点无伤大雅的乐趣。

I made a harmless remark to some guy at the bar and he swung at me.

在酒吧里我向某个家伙说了句无恶意的话,他就向我打了一拳.

Using this timer puts me on task and is a harmless bully.

用这个定时器使我集中于工作任务上,而它是个无恶意的土霸.

The trouble was sparked off by an apparently harmless phrase.

这场麻烦是由一句明显无恶意的话引起的.

For the most part, piling on dark pigments in the teeth, bones and skin is harmless.

在多数情况下, 聚集在牙齿 、 骨骼和皮肤上的色素沉着是无害的.

A few drinks may seem harmless but beware: alcohol is a devil in disguise.

喝几口酒可能没有什么坏处,不过得小心: 含有酒精的饮料是一种糠衣裹着的砒霜.

What diet pill to use to cut quickly woollen cloth harmless to the body?

用什麽减肥药减得快,又对身体无害的 呢 ?

It's a new drug, quite harmless.

高级针剂, 相当无害的.

Why is this harmless file detected as a virus?

那为什么为把这个文件认为是病毒 呢 ?

This discolouration is completely harmless.

这种变色是完全无害的.

The dog seems fierce , but he's harmless.

这狗看似凶狠, 但不伤人.

A harmless traveller was led to the same spot.

一个并无所求的旅行者也到了这地方.

Fructosuria is a harmless condition.

果糖尿对身体没有伤害.

Alcohol per se is harmless enough; it is only when taken in excess that it becomes dangerous.

酒本身并无大害, 只是饮用过度才有危险.

We live in dread not only of unpleasant insects like spiders or wasps, but of quite harmless ones like moths.

我们不仅生活在对象蜘蛛或黄蜂这样的小虫的惧怕中, 而且生活在对诸如飞蛾这样无害昆虫的惧怕中

The shipper shall hold the carriers harmless from any expense they may incur.

发货人应赔偿承运人所发生的任何费用.

Voyeurs are scary, but they are usually harmless.

偷窥狂很可怕, 但是他们通常不会伤害人.

Yet, somehow, they had to destroy the forces of shek or at least render them harmless.

但无论如何, 他们必须消灭蒋介石的部队,或者至少使他们不能为非作歹.

Energy Barrier . You convert energy attacks to harmless light.

能量障壁: 你将能量攻击转变成无害的闪光.

They killed the harmless old man in cold blood.

他们残忍地杀害了那位无辜老人.

Be humble, be harmless, gave no pretension, be upright, forbearing, serve you teacher in true obedience.

要谦虚, 无恶意, 不虚伪, 要正直, 宽容, 对你的老师要真正的服从.

These people are harmless enough.

这里的老百姓都是非常和善可亲的.

It was just a piece of harmless frivolity.

这仅是无恶意的愚蠢行为。