defenceless

defenceless的音标为[dɪˈfenslɪs]，基本翻译为“无防备的；无防御的”。

速记技巧：将单词拆分记忆，"defence"意为“防御，防卫”，"less"是形容词后缀，表示“没有...的”。整体记忆为“没有防御的”即可。

英文单词“defenceless”的词源主要有两个部分：前缀“defence”和词根“less”。其中，“defence”来源于古英语中的“defende”，意为保护、防御；“less”则是一个常见的形容词后缀，表示“无...的”或“缺少...的”。

“defenceless”的字面意思就是“无防备的”，强调缺乏防御能力或保护措施。在实际使用中，这个词通常用于描述那些没有防备的人或事物，例如儿童、老人、无助的动物等。

变化形式上，“defenceless”可以变为“defensless”，这是它在过去式、过去分词和现在分词中的形式。

相关单词：

1. “defend” - 意为“保护、防御”，与“defence”有直接的关联，可以与“defenceless”构成反义词组，如“undefended”意为无保护的。

2. “shield” - 意为“盾”，是防御武器的一种，可以与“defenceless”构成近义词组，如“unshielded”意为无盾的。

3. “armour” - 意为“盔甲、装甲”，也可以与“defenceless”构成近义词组，如“unarmoured”意为无盔甲的。

以上就是关于单词“defenceless”的一些信息，希望对你有所帮助。

常用短语：

1. defenceless against 面对无防备的

2. defenceless position 无防御的位置

3. on one"s defence 处于防御状态

4. out of one"s defence 脱离防御

5. on one"s guard 保持警惕

6. be on one"s toes 保持警觉

7. be at one"s mercy 任人摆布

双语例句：

1. The defenceless village was attacked by enemy forces. （无防御的村庄遭到敌军袭击。）

2. She was on her guard against any possible danger. （她时刻警惕着任何可能出现的危险。）

3. They were out of their defence and had to rely on others for help. （他们脱离了防御，只能依靠别人来帮助他们。）

4. The enemy was completely defenceless against our attack. （敌人对我们的攻击毫无防备。）

5. He was on his toes, always ready to defend his country. （他时刻保持警觉，准备保卫自己的国家。）

6. She was at his mercy, and he took advantage of her weakness. （她任人摆布，他利用她的弱点。）

7. We must always be on our guard against the enemy"s cunning tricks. （我们必须时刻警惕敌人的狡猾诡计。）

英文小作文：

标题：Defenceless and the Need for Protection

In this world, there are many situations where people are defenceless, whether it is a village without any fortifications, a child without experience, or an animal without the ability to speak up for itself. These people and things are vulnerable to attack and exploitation, and they need protection to ensure their safety and well-being.

However, it is not always easy to provide protection for those who are defenceless. Sometimes, it requires the efforts of many people and organizations to come together and work together to ensure that these people are safe and cared for.

In conclusion, we should always remember those who are defenceless and strive to provide them with the protection they need. It is our responsibility to ensure that they are not left behind in this world, but rather embraced and cared for by those around them.