Taim ol manmeri i wokabaut, ol i save yusim 'zebra crossing' long brukim rot. Long nait, planti taim ol manmeri i save lukim ol retpela na waitpela pos long tupela sait bilong rot, na dispela i kirapim tingting bilong ol long was gut. Ol dispela i no ol samting bilong givim lait, tasol ol i wanpela nupela samting ol i kolim 'glass beads'. Taim ol i stap long lait, ol i save soim wanpela piksa long ai bilong man. Ol i save yusim planti long ol rot, olsem na hau bai ol i ken yusim ol long kisim gutpela risal?
1. Mekim ol samting we ol i yusim i kamap gutpela na kamapim ol 'scientific design'.
Maski em i wanpela 'zebra crossing' o wanpela 'roadside safety bollard', ples bilong en i mas i stap long sait bilong saiens. Ol i mas skelim gut spes na tik bilong ol glas bis. Long ol zebra krosing, ol i mas yusim inap mak bilong mekim ol i stap longpela taim; sapos nogat, ol bai lus bihain long wanpela mun na ol i no inap long yusim.
2. Mekim gutpela seleksen bilong ol samting bilong mekim gutpela wok. Long sait bilong ol 'glass beads', gutpela 'heat insulation' na 'reflective properties' bilong en i mekim na planti manmeri i save yusim ol long droim ol 'zebra crossing'. Long taim bilong yusim ol sefti pos, ol i mas yusim tu wantaim ol narapela samting. Taim yu baim, lukluk gut sapos tupela i ken wok gut wantaim na mekim bikpela wok long kirapim tingting bilong yu long seifti bilong draivim ka.
