Whencarbonisaddedtoironintheproperproportions,theresultissteel.
Withlasersscientistscanprobemanyphysicalprocesses,suchascombustion,oncebeyondourken.视野
Someseaurchins海胆havevenomous(toxin)spines
Motorists_____ofspeedingmaybebannedfromdrivingforayear.
EllaGrasso,electedgovernorofConnecticutin1974,supportedtheenactment(given,granted)ofafreedom-of-informationlaw.