and prolonged sneezing — allergies.They are mostly caused by wind-borne pollen which enter the nose passages and trigger the allergic reaction. A third of allergy sufferers can develope asthma and damage ……

to be polluted.C. They help pollen spread more widely.C. They help pollen spread more widely.D. They help pollen move faster.D. They help pollen move faster.4. What does the example of ryegrass show?4 ……

I like butterflies. They have colorful wings. These butterflies in the photos are drinking pollen (花粉). They carry pollen to the flowers. They help the plants have beautiful flowers. ……

Pollen from cypress trees spreads in the air at the Temple of Heaven in Beijing on March 20. ... of sneezes (打喷嚏) lately? It might be because pollen allergy (花粉过敏) season is here! Beijing ……

sick because of the pollen (花粉) floating in the air? Beijing has passed a new measure to carry out... or even get sick because of the pollen (花粉) floating in the air? Beijing has passed a new measure to carry ……

flowers. But they also bring grass and tree pollen (花粉), causing sneezing, watery eyes and runny noses for millions of seasonal allergy (过敏) sufferers all over the world.“As plants begin to bloom (开花 ……

for millions seasonalallergy(过敏) sufferers all over the world."As plants begin tobloom(开花) and their pollen is carried around by the wind,hay fever symptoms(枯草热症状) blossom as well," said Jay M. Portnoy ……

for millions seasonalallergy(过敏) sufferers all over the world."As plants begin tobloom(开花) and their pollen is carried around by the wind,hay fever symptoms(枯草热症状) blossom as well," said Jay M. Portnoy ……

in state newspapers, a sign more sufferers may be ready to tackle rampant discrimination.Doctors and AIDS activists said the couple's openness in allowing the press to cover their wedding would help ……

are allergic to. Keep your windows closed during the pollen season. Turn on the air conditioner. This should help.Cut down the time you spend outdoors between 5 and 10 am, and on hot, dry, windy days ……

. We can also grow more plants that have more pollen (花粉).It’s time for us to take action (行动...面临生存危机！蜜蜂面临生存危机！Bees give us honey and help plants grow. But the little things are facing many ……

juniper pollen to Beijing this year. It also makes the pollen season         ... to Beijing this year. It also makes the pollen season              3 ……

they do this. It would help us to understand how pollen is moved around. In addition, if they find... of London discovered that bees can quickly solve a problem that takes computers many days.A shorter ……

allergy shots help relieve (减轻) allergic reactions. However, it’s best to try and avoid things you’re... spring. But don’t get too excited. Spring winds spread pollen (花粉) and dust (灰尘), a big headache ……

rains bring May flowers. But they also bring grass and tree pollen (花粉), causing sneezing, watery eyes and runny noses for millions of seasonal allergy (过敏) sufferers all over the world.“As plants ……