He wanted his identity kept dark.

他希望对自己的身份保密。

youdao

It is important that this underground room be kept dark. Light can cause potatoes to develop a poison called solanine.

但保持这个地下室阴暗是非常重要的，因为光会导致马铃薯产生一种茄碱的毒素。

youdao

Rogers found that a chick's lateralisation depends on whether it is exposed to light before hatching from its egg—if it is kept in the dark during this period, neither hemisphere becomes dominant.

罗杰斯发现，小鸡的偏侧性取决于它在孵出蛋之前是否暴露在阳光下——如果在这段时间里保持黑暗，右脑或左脑都不会占优势。

youdao

The journalists were separated and kept most of the time chained up in a dark,windowless room.

VOA: standard.2009.11.26

But councils are not the only ones being kept in the dark by the latest initiative.

BBC: RELATED BBC SITES

So while the owners know what's going on, renters are usually kept in the dark.

CNN: Tenant evicted even though she pays rent on time

However, the UUP, SDLP and Alliance complained they had been kept in the dark over the proposals.

BBC: Peace wall in Belfast