airtight
adj. 密闭的,密封的;无懈可击的
例句
Food will last longer if kept in an airtight container.
如果贮藏在密封的容器里,食物能保持比较久的时间。
《牛津词典》
Store the peppercorns in an airtight container and grind the pepper as you need it.
将胡椒子储藏在密封容器里,当你需要的时候把它磨成粉。
《柯林斯英汉双解大词典》
The casing is nearly airtight, which helps protect the vulnerable egg and later larva.
外层几乎是密封的,可以保护脆弱的蜂卵,以及后来的幼虫。