Soon a strange black fly flew into the room.

不久一只奇怪的苍蝇飞了进来。

Each day, black fly rise from turbulent stretches of the river.

每天，成千上万的蚋从奔腾的河水中羽化。

Never had a problem with ants. Mary Alice and I had these little black flies once. -Oh?

从未有过蚂蚁的问题。Mary Alice和我有过一些黑色的小苍蝇。-哦？

Mary Alice and I had these little black flies once.

倒是曾经被黑蝇侵袭过。

Again, he would eat some of the black flies in the well.

再一次，他会吃一些井里的黑苍蝇。

The disease is carried by a black fly which lives in the rivers.

【carry】这种疾病是由生活在河边的一种黑蝇传播的。

Scientists expect a 26 percent increase in insects, such as black flies and midges, by next summer.

科学家预计，到明年夏天，黑蝇和蠓等昆虫的数量将增加 26%。

In the spirit of comparative immunology, Baker and her colleagues looked at how another mammal—the black flying fox, a type of bat—handles infections.

本着比较免疫学理论，贝克尔和她的同事们对其它哺乳动物蝙蝠的一种，黑狐蝠应对感染的方式进行了观察。

After a long sea journey, they set off into the jungle, battling through thick clouds of black flies that inflicted skin-ripping bites - but it was worth it.

经过漫长的海上旅程后， 他们出发进入丛林，与厚厚的黑色苍蝇云团搏斗，这些苍蝇会造成皮肤撕裂的叮咬——但这是值得的。

I came to the turning loop and stopped in front of a redwood building with a shake roof and a wide front porch. The entrance had double screen doors. Large black flies dozed on the screens.

我来到转弯处，停在一栋摇摇晃晃的屋顶和宽阔的前廊的红木建筑前。入口处有双层纱门。黑色的大苍蝇在屏幕上打瞌睡。

Scientists expect a 26 percent increase in insects, such as black flies and midges, by next summer. Scientists say that when insect populations grow, so do the populations of other animals such as fish, bats, birds and other insect eaters.

科学家预期到明年夏天，昆虫将会增长26%，比如黑蝇与蚊子。科学家称，随着昆虫数量增长，其他动物数量也会增长，比如说鱼、蝙蝠和其他吃昆虫的动物。