to let fresh air enter your room.●  Open the window from time to time: The air in a small room needs to be circulated (流通) every 2 hours. Open the window to let fresh air enter your room.● Keep the AC ……

Choose the answer: 1. The writer’s family turned off the air-conditioner in order to _____.A. open the window and let in fresh air B. listen to the birds singing outside C. save some money ……

for it is outside, waiting for collection.When you are at home, open the window to let in fresh air.Follow... in the bathroom is fresh.Keep yourgutters(水槽) clean and clear, so that dirty water doesn't make your ……

. We’d better open the windows each morning to let fresh air in. In public, we shouldn’t spit ……

some masks might be too air (密封的) and limit air flow (空气流通). You can open windows to let fresh air... some masks might be too air (密封的) and limit air flow (空气流通). You can open windows to let fresh air ……

the virus from building up.Open windows to let fresh air in during the day. Do it three times a day for 15... speaking. Wearing masks can prevent droplets from hitting your face or mouth.vOpen windows to let ……

.vOpen windows to let fresh air in during the day. Do it three times a day for 15 minutes to half an... ventilation can stop the virus from building up.Open windows to let fresh air in during the day. Do ……

: Let fresh leaves rest to lose moisture and make enzyme reactions happen faster to get ready for fermentation (发酵)Weidiao 萎凋: Let fresh leaves rest to lose moisture and make enzyme reactions happen ……

mysterious things. C. To pass secret letters.D. To let in fresh air.1. Why was a narrow passage... mysterious things. C. To pass secret letters.D. To let in fresh air.2. What was the population of Yan ……

indoors (室内), open your windows to let fresh air in every day. Do it three times a day for 15 minutes....    When you’re indoors (室内), open your windows to let fresh air in every day. Do ……

healthyKeep proper indoor ventilation (通风) while at home. Open windows to let in fresh air during the day.... Open windows to let in fresh air during the day. It’s best to do this three times a day for 15 ……

indoor ventilation (通风) while at home. Open windows to let in fresh air during the day. It&rsquo... windows to let in fresh air during the day. It’s best to do this three times a day for 15 minutes ……

indoors (室内), open your windows to let fresh air in every day. Do it three times a day for 15 minutes.... Ventilation (通风) can stop the virus from building up.When you’re indoors (室内), open your windows to let ……

应)Apply high heat to wet leaves to stop enzyme reactions (酶反应)Weidiao 萎凋Weidiao 萎凋Let fresh leaves rest to lose moisture and increase enzyme activities to prepare for fermentation (发酵)Let fresh leaves ……

How fast can you say it?Fresh fried fish, fish fresh fried, fried fish fresh, fish fried fresh. ……