填空题

Dear Guests,
We would like to reduce the impacts this event has on the environment to a minimum (最小值), therefore we would like to encourage you to take part in our "Eco-Stay" program during your stay in this hotel.
To save water and reduce water pollution, we do not change the towels every day.
To reduce wastes of resource and energy, such single-use items as toothbrush, comb (梳子) and razor (剃须刀) will not be provided at the time of your check-in.
To reduce the impacts that waste has on the environment, we would like to encourage you to take part in our waste sorting and recycling program. Please place paper, glass and metal in the plastic bag in each room. The materials in the bag will be collected after the meeting, and be delivered to a waste collection station in the city where they will be further sorted and delivered to recycling facilities.
Eco-stay Guidance
The guidance intends to reduce the impacts on (46) .
The hotel will not change the towels every day in order to (47) .
(48) will not be provided in order to reduce wastes of resource and energy.
The purpose of the waste (49) program is to reduce the impact of the waste.
The materials will be delivered to a (50) .