air-tight

基本解释

The disillate needs to be kept in an air-tight container.
蒸馏后的精华需要保存在密封的容器内。
We recommend storing beans in a clean, dry, air-tight container, in a cool dark place.
我们建议应把咖啡豆保存在干净、干燥、密封的容器中，并应放在避光的地方。
If you choose to prepare your own containers of water, you should buy air-tight, food-grade water storage containers from surplus or camping supply stores.
如果你准备用自己的容器装水，你应该从军用品或者野营用品专门店购买那种不漏气的、专门储存食品的盛水容器。

Leading companies began to experiment with making air-tight individual doses.
ECONOMIST: Espresso coffee
Security and focused on money laundering and other financial crimes, built an air-tight case against nearly a dozen Con Ed supervisors and former employees involved in a kickback scheme.
FORBES: New York's Electricity Crisis Started Before Sandy
How likely is it that we will ever have the kind of air-tight inspection regime that prevents a hermit kingdom like North Korea from squirreling away a few fission devices?
FORBES: Nuclear Weapons: How Few Is Too Few?

If a container is airtight, its lid fits so tightly that no air can get in or out.
An airtight alibi, case, argument, or agreement is one that has been so carefully put together that nobody will be able to find a fault in it.