<prompt> Translate the following text to EnglishMeli za baharini zinaweza kusafiri kwa njia ya bahari kwa sababu ya mchanga ulioko kwenye mlango wa mto na kwa sababu ya maporomoko ya maji, ingawa meli ndogo za baharini zinaweza kusafiri kwa njia ya Rejang huko Sarawak na Kinabatangan huko Sabah.  <response>: Navigation is hindered by sandbars at the mouth and rapids upriver, though small, sea-going vessels can make fair headway up the Rejang in Sarawak and up the Kinabatangan in Sabah. 