enough good food is important for healthy in( ) children.(grow)

问题描述:

enough good food is important for healthy in( ) children.(grow)
it's dangerous for the boy to climb up the high ladder without any ( ),(protect)
the book gives a ( ) of every scenic spot in Nanjing,so tourists can learn a lot from it.(describe)

growing (in是介词,后面用ing)
protection
description