be watertight

基本解释

They can be watertight, like that at the London Times, but increasingly they are porous, letting publishers charge for access to content while also admitting casual visitors and allowing sharing.
虽然他们可能是完全收费的，像伦敦泰晤士报那样，但是他们越来越多通道的，让出版商对内容收费的同时，也允许休闲的浏览者进入，允许分享。
No bodies of the 46 missing crew members have been retrieved, feeding families' hopes that their sons and husbands might still be alive inside their watertight cabins.
目前尚未发现46名失踪船员的遗体，这给失踪者家属留下一线希望，认为自己的丈夫、儿子或许能在水下密闭船舱内生还。
www.chinadaily.com.cn
The rules state that samples must be enclosed in two watertight containers.
规则要求样本必须装在两个水密容器中。。

The contracts may be watertight, but you can get soaked waiting for a judgment.
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Folks in the dowdy world of academia have to be watertight with their research if they want their results to be credible, which is why typical studies into happiness will only target a few dozen people with lots of questions.
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