His remedial teacher sees signs of progress in his reading and writing.

30 percent of reptiles, birds, and fish are currently threatened with extinction.

目前，30%的爬行动物、鸟类和鱼类面临灭绝的危险。

Megamalls and fast food restaurants line the highway system.

公路系统沿线有大型商场和快餐店。

The commander and some of the men had been released.

指挥官和一些士兵已经获释。

The lofty mountains were crowned with snow.

高山顶上积满了雪.

The big storms in August refilled the reservoirs.

八月的暴雨又使水库积满了水.

Snow accumulated on the ground.

地上积了一层雪.

Noxious gases had built up in the sewer.

下水道的有害气体越积越多.

Snow was caked high along the streets.

街道旁积着高高的雪堆.

He is laying aside [ laying by ] money for his old age.

他在 积储 钱以备晚年之用.

Pig-breeding not only improves the people's diet; it makes more manure available.

养猪不独可以改善人民生活, 还能多积肥料.

Many small victories add up to a big one.

积小胜为大胜.

The rain collected in several depressions on the ground.

地面上好几处凹陷的地方都积了雨水.

A thin layer of dust covered everything.

所有的物品上都积了薄薄的一层灰尘。

Thick cobwebs hung in the dusty corners.

积有灰尘的角落挂着厚厚的蜘蛛网。

Surgeons siphoned off fluid from his left lung.

外科医生抽出了他左肺中的积液。

The victims' lungs fill quickly with fluid.

受害者的肺里很快充满了积液。

Problems were piling up at work.

工作中的问题越积越多。

Glaciers are moving rivers of ice.

冰河是犹如河水般流动的巨大冰体。

I have patients who are HIV-positive and asymptomatic.

我的一些病人艾滋病病毒检测呈阳性，但却无任何体征。

It's written in epistolary form.

它是用书信体写成的。