英和和英

air passages

stomatal openings

a hole called a ventilating hole

a ventilator

a hole used for ventilation

an airtight room

a fan-engine

to close a hole―stop a hole

a shaft for ventilation

a device called a ventilation cylinder

A hole is closed

to look through a hole―peep at a hole

to pass through a hole

nonporous wood

a punched hole

to be perforated

to make a hole by digging

to go through a hole

to peep in at a knot-hole―peep through a knot-hole

a door with a round hole in it

to pick a hole in anything―poke a hole in the wall

to bore a hole in the rock―perforate the rock