airtight

airtight 的音标是["eə"taɪt] ，基本翻译是密封的，不能渗透的。速记技巧可以用词根记忆，air（空气）+ tight（紧的）→ 空气无法进入的 → 密封的。

Airtight这个词源自英语，其词源可以追溯到拉丁语和法语。它的词根含义是“无空隙的”，表示完全封闭或紧密结合。

变化形式：在英语中，airtight可以通过词缀和词根进行变化，如形容词形式为air-tight，副词形式为air-tightly。

相关单词：

tight：意为“紧的，牢固的”，源于古英语中的“tithan”，意为“紧闭，拉紧”。

sealed：意为“密封的”，源于中古英语的“seile”，意为“封闭，密封”。

closure：意为“封闭，结束”，源于法语中的“closure”，意为“封闭物”。

tighten：意为“使变紧”，源于古英语的“tithan”和“en-”，表示使某物更紧。

fasten：意为“固定，系紧”，源于古英语的“fast”和“en-”，表示使某物牢固地固定在一起。

bond：意为“债券，契约”，源于法语中的“bonds”，意为“捆绑，束缚”。

tightrope：意为“绷紧的绳索”，源于古英语的“tithorpe”和“rope”，表示需要保持平衡的绳索。

airlock：意为“空气锁”，源于英语中的air-lock，用于防止空气泄漏的设备。

tightfisted：意为“吝啬的”，源于air-tight和fisted，表示对金钱或物品非常小气的。

以上单词都与airtight有着密切的联系，通过这些单词可以更好地理解airtight的含义和用法。

常用短语：

1. airtight schedule 严密的日程安排

2. airtight security 严密的安全措施

3. airtight agreement 毫无异议的协议

4. airtight cooperation 紧密的合作

5. airtight defense 严密的防线

6. airtight seal 密封

7. airtight container 密封容器

例句：

1. We have an airtight schedule for the meeting tomorrow.

2. The security measures we took were airtight against any possible threats.

3. The two sides reached an airtight agreement on the key issues.

4. Our team is working closely together in an airtight cooperation.

5. The defense we put up was airtight and no one could break through.

6. The package has been sealed airtight for storage.

7. The new building is enclosed in an airtight container to prevent any environmental impact.

英文小作文：

Title: The Importance of Airtight Security Measures

Airtight security measures are crucial for ensuring the safety and security of our facilities, personnel, and information. Without these measures in place, we are vulnerable to various threats, including sabotage, theft, and cyberattacks.

From protecting critical infrastructure to safeguarding confidential information, airtight security measures are essential for maintaining a safe and secure environment. They not only protect us from external threats but also prevent internal breaches, ensuring that our operations run smoothly and efficiently.

Moreover, airtight security measures contribute to our reputation and brand value as a trustworthy organization. They demonstrate our commitment to safety and reliability, which in turn, fosters trust and confidence among our stakeholders, partners, and customers.

Therefore, it is essential to invest in robust airtight security measures to safeguard our assets, personnel, and information from external and internal threats. By doing so, we can create a safe and secure environment that fosters trust and confidence among our stakeholders, partners, and customers.