1
airtight + noun
用于修饰容器、系统等。
The company uses an airtight storage container.
该公司使用气密储存容器。
气密的，不透气的
先理解核心含义，再看它在真实句子里的用法。
气密的，不透气的
sealed so that no air can enter or escape
The company uses an airtight storage container.
该公司使用气密储存容器。
不透空气或其他气体的。
Impermeable to air or other gases.
没有弱点
having no weak points
没有弱点或缺陷的。
Having no weak points or flaws.
不允许空气或气体进出
not allowing air or gas to pass in or out
The container has an airtight seal to keep the food fresh.
这个容器有气密密封，可以保持食物新鲜。
AI contextual example
Her argument was airtight, leaving no room for doubt.
她的论点无懈可击，没有留下任何怀疑的余地。
AI contextual example
Make sure the lid is airtight before storing the leftovers.
存放剩菜前确保盖子密封不透气。
AI contextual example
an airtight defense
无懈可击的辩护
WordNet
用于修饰容器、系统等。
The company uses an airtight storage container.
该公司使用气密储存容器。
常用于比喻义，表示没有漏洞。
Your plan seems airtight.
你的计划似乎无懈可击。
Make sure you keep the jar airtight.
确保罐子保持密封。
Not this
The container is sealed airtightly.
Use this
The container is sealed airtight.
airtight是形容词，表示“不透气的”，在“sealed airtight”结构中用作主语补足语，无需加-ly变为副词。
Not this
We need to airtight the container.
Use this
We need to make the container airtight.
airtight是形容词，不能直接作动词使用；应使用“make + 宾语 + 形容词”结构，表示“使……气密”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
密封容器
Store the coffee beans in an airtight container to keep them fresh.
把咖啡豆存放在密封容器中以保持新鲜。
气密密封
The lid forms an airtight seal, so the food stays fresh.
盖子形成气密密封，因此食物保持新鲜。
密封包装
These snacks have airtight packaging to keep them from going stale.
这些零食采用密封包装，以免受潮变味。
无懈可击的不在场证明
He had an airtight alibi for the night of the robbery.
他对抢劫之夜有无懈可击的不在场证明。
无懈可击的案件
The prosecutor presented an airtight case against the suspect.
检方针对嫌疑人提出了无懈可击的案件。
无懈可击的论点
She made an airtight argument for changing the policy.
她为改变政策提出了无懈可击的论点。
无懈可击的不在场证明
The suspect had an airtight alibi, so the police had to release him.
嫌疑人有无懈可击的不在场证明，警方只好放了他。
无懈可击的案子
The prosecutor presented an airtight case against the defendant.
检察官针对被告提出了无懈可击的指控。
无懈可击的论点
She made an airtight argument for why we should adopt the new policy.
她为我们应该采纳新政策提出了无懈可击的论点。
发长 /aɪ/ 音 (如 high, light)
Same pattern, same sound
Use airtight naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把空气（air）紧紧（tight）关住——既指密封不漏气，也比喻毫无破绽。
语域：neutral 常见场景：食品储存、包装运输、建筑门窗 airtight 最常见的用法是表示“气密的、不透气的”，属于中性词，多用于容器、包装、门窗等能阻挡空气或气体进出的语境。学习时优先掌握这个字面意义比较稳妥。
air, hair, chair, fair rhyme with the 'air' in airtight, all pronounced /ɛr/. tight and night rhyme with the final /taɪt/, sharing '-ight'. Beware lookalikes: 'straight' /streɪt/ and 'eight' /eɪt/ look similar but do not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.