Once again, this is the case. Americans who are rated "very attractive" have a 56 percent chance of having a daughter for their first child, compared with 48 percent for everyone else.

所以，情况就是这样，被认为很有魅力的美国人的第一个孩子有56%的机会是个女儿，而其他人则只有48%的几率。

youdao

For comparison's sake, the Jawbone up is rated for up to 10 days but then again, you have to plug it in every time you want to sync, and the cap covering the charging piece is easy to lose.

ENGADGET: Fitbit announces the Flex wristband, a $100 fitness tracker to take on the Jawbone Up