i understand this stuff
我理解这些东西
以上为机器翻译结果，长、整句建议使用 人工翻译 。
'here's an interesting fact about black holes', you can almost hear people saying: 'Oh I never understand this stuff.
BBC: Tributes paid to Sir Patrick Moore
And I do understand that Brent crude was down more, but again, this is hardly the stuff from which celebrations are born.
FORBES: Volatility Leads to Analyst Downgrades
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