However, if a black hole passes through a cloud of interstellar matter, or is close to another "normal" star, the black hole can accrete matter into itself.
然而,当一个黑洞穿过一片星云,或者靠近另一个正常恒星时,黑洞将会使它自身的物质增加。
These elements become part of the interstellar gas and dust.
这些元素成了星际气体和星际尘埃的一部分。
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