还可以使用- D开关显示每个系统调用的时间差，时间差表示自前一个事件以来流逝的秒数。

You can also use the -d switch to display each system call with a time delta, representing the elapsed time in seconds since the last event.

youdao

下面所说的完全是我个人的一些观点及经历，某些事件发生的时间或地点可能会有些偏差（在我这样的年纪，记性是越来越差了）。

This story is solely from my own personal perspective and I'm sure that I may have a somewhat distorted view of time and space (which keeps getting worse at my age).

youdao

在像这样的事件中，吸力源于机舱环境与外部环境的压力差。

In events like these, the sucking force originates from a difference in pressure between the cabin environment and the outdoor one.

youdao