使用手机模糊了工作时间和非工作时间之间的界限，增加了家庭和朋友之间的压力和紧张气氛。

Cell phone use has blurred the boundaries between work and non-work time, increasing stress and tension within families and between friends.

youdao

对我个人而言，明确自己与他人的界限，释放压力和担忧更为重要。

For me personally I'm going to focus on strengthening my boundaries and releasing stress and worry more often.

youdao

如果它们的物质受制于来自胜于自我引力的一些足够大压力其它来源，只能产生比这个界限小的黑洞。

Black holes smaller than this limit can only be created if their matter is subjected to sufficient pressure from some source other than self-gravitation.

youdao