英 [ˈtaɪtˈlɪpt]
adj. 守口如瓶的
〖tightlipped;reticent;donotbreatheasingleword〗闭口不说,像瓶口塞紧了一样。
... secretive 秘密的 closelipped 守口如瓶的 tightlipped 守口如瓶的 ...
The National Association of Broadcasters remained fairly tightlipped over the decision, however.
然而，全美广播电视协会（NAB）对此决定仍十分不买账。
This time around Apple was tightlipped about how long Jobs would be away and did not give details about his condition.
Claire Remington, Coaldale's mayor since 2001 and lifelong resident, said her constituents are "tightlipped" about who will get their vote in the primary.
CNN: Behind the Scenes: Small-town voters talk economic pain, politics
And Israeli officials have been somewhat tightlipped on what the strategy was and what their sense of the use of the cluster bombs was.