1. Pass（基础词） -- 基本义：物理空间的通过 The ship passed the channel.（船只通过海峡） -- 引申义：时间流逝（口语化表达） Three hours passed quickly.（三小时很快过去） -- 考试通过 She passed the exam with flying colors.
2. Pass away（委婉语） -- 专指"去世"的委婉说法（比die更文雅） Her grandfather passed away peacefully last night. -- 注意：不可用于物体或抽象概念
Depression in a mountain landscape that creates a age.
word-vs-word-cn
【Pass】 , 【pass away】 , 【elapse】 , 【expire】 mean to move or come to a termination or end.
【Pass】 and 【pass away】 imply gradual or gentle movement to another state or condition; they often imply a transition from life to death but they may suggest a transition from any one state or time or season to another.
【Elapse】 suggests a movement that seems like the slipping and gliding away of something that moves silently or without notice; the word applies particularly to a period of time, either in reference only to itself or in reference to something that should have been accomplished within that time.
【Expire】 basically means to breathe one's last breath and hence to die; but it comprehends the extended senses as well as the ordinary sense of die, and is used in reference to many things that come to an end as if by death.
It is often used with this underlying notion in reference to a period of time (as stated in a bond, a note, a promise, an agreement, a patent, or a lease) which has come to an end.
