a situation where things disappear or are lost without explanation
一种事物消失或丧失而没有解释的情况 (yī zhǒng shìwù xiāoshī huò sàngshī ér méiyǒu jiěshì de qíngkuàng)
"All the research data went into a black hole after the server crash."
"所有研究数据在服务器崩溃后进入了一个黑洞。" (suǒyǒu yánjiū shùjù zài fúwùqì bēngkuì hòu jìnrùle yīgè **hēi dòng**.)
to have too much work to do
to create or develop trust in a relationship
recovering from an illness or injury
a perfect couple, very well suited for each other
something that is your responsibility or job to handle
to contact several people or places by phone
