There's a time lag between when you see a stop sign and when your foot steps on the brake.从你看见停车标识到你踩下刹车之间有时间滞差。There is a time lag of about 10 years.有大约十年时间的间歇。There is generally a two-year time lag in the information being made available.通常信息公开要有两年的时间差。There's a time lag between infection with HIV and developing AIDS.从感染艾滋病病毒到病发有一段滞后期。