其确切性质仍然是个谜，但有一个建议是，一些超亮度X射线源之间有大约质量是太阳100和1万倍的黑洞。

Their exact nature has remained a mystery, but one suggestion is that some ULXs are black holes with masses between about a hundred and a thousands times that of the Sun.

youdao

鲍瑞斯。布鲁伯先生将凭借其丰富全面的管理经验及对酒店业的无限热情，引领长沙万达文华酒店成为华中地区最为高端奢华的超五星级商务及会议酒店。

With his profound experience and enthusiasm, Mr. Boris Blobel will take WANDA VISTA CHANGSHA to be the leading five-star luxury business and conference hotel in central China.

youdao