observe warning造句

• This is the same reason that the highway department has all of those signs reading, " Observe warning signs.
• I never would have thought not to observe warning signs since I could think of no other purpose served by them than to be observed.
• The driver of a school bus struck by a freight train did not observe warnings before crossing the tracks, according to a state police report released Wednesday.
• In a 1995 paper published in the academic journal " Science ", Deming reviewed published analyses of borehole temperature data in North America and concluded " the magnitude of the observed warning . . . is still within the range of estimated natural variability . . . a cause and effect relationship between anthropogenic activities and climatic warming cannot be demonstrated unambiguously at the present time ."