<prompt> Translate the following text to SwahiliThe railway builders admitted it might have been safer to dig some tunnels, but they preferred to go round the mountain to allow for a better view of the terraced tea gardens and the valleys plunging down to the Bengal plains.  <response>: Wajenzi wa reli walikiri kwamba huenda ingekuwa salama zaidi kuchimba vijia, lakini walipendelea kuzunguka mlima ili waweze kuona vizuri bustani za chai zilizojipinda-pinda na mabonde yaliyoelekea kwenye nyanda za Bengal. 