Of course, Grace does not specify the identity of the jet owner, client confidentiality is a core responsibility of Gerace.
当然，格雷斯不会透露飞机主人，他的核心责任之一就是保护客户隐私。
He sits on a chair in a windowless laboratory and cradles a large rock, or core, of jet-black flint in his left hand.
桑德加特坐在一间无窗户的实验室里的一张椅子上，他的左手握着一块墨黑的大燧石。
The Hubble images, obtained from the Hubble archive, show the jet growing brighter over a seven-year period, eventually outshining even the luminous core of M87.
根据哈勃档案图片资料，喷流变亮的周期超过7年，期间喷流甚至比m 87核心更亮。
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