air-tight

The container must be kept air-tight to preserve the freshness of the cookies.

用法提示：表示容器具有不透气的特性，防止空气进入。

The prosecutor presented an air-tight argument that left no room for doubt.

用法提示：比喻用法，指论证严密、没有漏洞。

We sealed the windows with air-tight tape to stop the draft.

用法提示：表示胶带具有不透气的特性。