21.   But Dunne said many of his officers were not wearing safety helmets until the crowd became unruly.

22.   But the fines usually can be avoided if a parent comes to court with proof that he or she has subsequently bought their child a safety helmet.

23.   If there were no laws on the compulsory use of safety helmets and seat belts, a large majority of people would not be using them.

24.   Not content with air bags and seat belts, Australian researchers are encouraging automobile drivers to don safety helmets to help cut down on head injuries.

25.   Not content with air bags and seat belts, Australian researchers are encouraging automobile drivers to wear safety helmets to help cut down on head injuries.

26.   The paramedics are dressed in bright colours, from their safety helmets down to their track pants.

27.   The report did not mention if the deceased wore a safety helmet.

n. + helmet >>共 81
motorcycle 11.14%
riot 10.29%
bicycle 10.00%
football 8.86%
safety 7.71%
leather 6.00%
steel 5.14%
army 2.86%
bike 2.86%
ski 2.57%
safety + n. >>共 393
standard 5.97%
concern 4.85%
measure 3.94%
board 3.27%
issue 2.85%
regulation 2.66%
rule 2.61%
problem 2.56%
reason 2.49%
official 2.31%
helmet 0.26%
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