英文關鍵字
against
agents
danger
equipment
extinguishes
extinguishing
fire
firefighting
foam
from
height
jet
lift
pressure
sky
testing
training
truck
water
英文關鍵字
against
agents
danger
equipment
extinguishes
extinguishing
fire
firefighting
foam
from
height
jet
lift
pressure
sky
testing
training
truck
water