短语讲解：

1. As of this week, her version has more than 8.5 million views on YouTube.

more than 超过; 不只是; 很; 在…次以上
例句：He had notched up more than 25 victories worldwide.
他已赢得了超过25次国际级别赛事的胜利。

2. That is something Sanchez and Lee do not have to worry about.

worry about 担忧， 烦恼; 惦念
例句：Don't worry about him; he is a cheerful and elastic man.
别为他担心;他是个快活开朗的人。