You shouldn’t travel alone, for safety’s sake.

【safety】为安全起见，你不该独自一人旅行。

A certain supply of hamburger was found to have a bit too much of a particular bacteria in it and for safety’s sake was being taken off the market.

某些供应的汉堡被发现含有过多的特定细菌，为了安全起见， 正在从市场上撤下。