词性：adj.
音标： [ˌbaɪˈlætərəl]
释义： 双边的
bilateral can describe anything with two sides, like some of the organs in the body: the brain, heart and lungs all have two distinct sides.
unilateral [ˌjuːnɪˈlætrəl] 一方的,单方面的,单边的
Certainly, we commit to a bilateral exchange.
@Chatbot 你是一个英语教学的大师，你会用通俗易懂的方式给学生讲解各类英语知识，现在请你给我解释下上面帖子中我着重讲解的单词，介绍下这些单词在正式文书和口语中的各类含义，各举几个地道，自然的例子。介绍下这些单词的来历，以及我如何才能记住这些单词呢？
当然，我很乐意为你详细解释这些单词，并提供一些实例帮助你记住它们。
单词解释
Bilateral [ˌbaɪˈlætərəl]
词性：形容词
释义：双边的，有两个方面的。
正式文书中的用法：
- Bilateral agreement - 双边协议：例如，“The two countries signed a bilateral agreement to reduce trade barriers.”
- Bilateral negotiations - 双边谈判：例如，“The bilateral negotiations between the countries lasted for several weeks.”
口语中的用法：
- Bilateral decision - 双边决策：例如，“The company’s future strategy was a bilateral decision made by the CEO and the board of directors.”
- Bilateral meeting - 双边会谈：例如，“We have a bilateral meeting scheduled with our partners next week.”
单词来历：
“Bilateral” 来自拉丁语 “bi-”（表示二）和 “lateralis”（表示侧面的或侧边的），组合在一起表示有两个侧面或方面的。
记忆技巧：
- 你可以将 “bi-” 和 “lateral” 分开记忆。“Bi-” 表示两个，比如双胞胎 (twins) 就是 “双”。
- 想象一下人体是 “bilateral”，左右对称，有两个侧面：左手和右手，左脚和右脚。
Unilateral [ˌjuːnɪˈlætrəl]
词性：形容词
释义：单方面的，单边的。
正式文书中的用法：
- Unilateral decision - 单方面决策：例如，“The company made a unilateral decision to close the branch.”
- Unilateral action - 单方面行动：例如，“The government’s unilateral action was criticized by the opposition.”
口语中的用法：
- Unilateral move - 单方面的举动：例如，“His unilateral move to change the project timeline surprised the team.”
- Unilateral change - 单方面的变更：例如，“She made a unilateral change to our plans without consulting anyone.”
单词来历：
“Unilateral” 来自拉丁语 “uni-”（表示一个）和 “lateralis”（表示侧面的或侧边的），组合在一起表示只有一个侧面或方面的。
记忆技巧：
- 你可以将 “uni-” 和 “lateral” 分开记忆。“Uni-”表示单个，比如一种语言 (unilingual) 是 “单” 语言。
- 想象一个圆圈旁边只有一个指引方向的箭头，表示单方向的行动。
例子
Bilateral:
- In business: “The bilateral contract between the two companies will boost their profits.”
- In healthcare: “Bilateral lung transplantation is often required for serious respiratory conditions.”
- In politics: “The bilateral summit aimed at strengthening diplomatic ties.”
Unilateral:
- In business: “The unilateral cancellation of the deal by one party caused a lot of tension.”
- In healthcare: “Unilateral hearing loss can significantly affect one’s quality of life.”
- In politics: “The country’s unilateral decision to withdraw from the treaty was viewed as controversial.”
希望这些解释和例子对你有所帮助！如果有任何进一步的问题，随时问我。