unless

“unless the birth rate returns to a sustainable level.”

除非出生率可以达到人口发展可持续的水平。

“It is impossible to live without failing at something, unless you live so cautiously that you might as well not have lived at all, in which case you fail by default.”

除非你活得谨小慎微以至于如同未曾活过一般，否则不可能不经历任何失败；而那样的话，你实际上就是默认失败了。

“When I became CEO of Toyota 10 years ago, I was told by one of my mentors that I couldn't expect to be taken seriously by our engineers unless I really knew”

当我十年前成为丰田 CEO 时，一位导师告诉我，除非我真的懂得如何驾驶，否则工程师们不会认真对待我。