def doWithInjection() = {
Most adults do not need a hard eight hours of sleep; a growing body of evidence and evolutionary research suggest the optimal nightly sleep for many healthy adults is closer to seven hours, with health risks rising on either side of that range in a U‑shaped pattern.。关于这个话题，纸飞机下载提供了深入分析
Which lets us use the following substitution:，这一点在谷歌浏览器下载中也有详细论述
有人直接说，如果你不能接受你的数据某天被全部泄露到网上，就不用养龙虾。