1.
A heavy layer of volcanic ash rained down over the Aegean, covering islands and crops.
浓厚的火山灰层大量降下到爱琴海，遮盖了岛屿和农作物。
2.
Without adequate P, yields were tremendously depressed.
若无充足磷肥，产量会大大下降。
3.
In real terms, the drop in net capital flows was even large.
按实际价值计，净资本流入量下降更大。
4.
Because of the ivory trade, elephant numbers fell quickly.
由于象牙贸易，大象的数量急剧下降。
5.
To fall or slide in a massive or overwhelming amount.
雪崩似的降落或滑下以巨大的或极大的数量降落或滑下
6.
The earthworm population had declined by 70%.
蚯蚓数量下降70％。
7.
a gradual decline (in size or strength or power or number).
逐渐下降（在大小、实力、力量或数量等方面）。
8.
Heavy rainfall makes a river rise while continuous dry weather makes a river sink.
大量降雨会使河水上涨，而连续干旱又会使河流水位下降。
9.
In the 1980s, RAM chips got bigger and bigger in capacity while their prices dropped.
在80年代，RAM芯片的容量越来越大，而价格却下降。
10.
The steel output of these countries fell drastically [by a wide margin] in July.
七月份这些国家的钢产量急剧[大幅度]下降。
11.
Low sales for turbot during the past months have led to a price drop.
大菱前几个月交易量偏低，导致价格下降。
12.
Reasons and Countermeasures of the Graduation Thesis Quality Decline of Liberal Undergraduates;
文科大学生毕业论文质量下降的原因与对策
13.
Forecast of the Maximum Water Inflow in Mine Pits by Rise-Fall Ratio Method Under a Steady Environment
深降比法预测稳态环境下矿坑最大涌水量
14.
Producing a very great amount of long-lived radioactive fallout.
产生大量辐射微尘的产生大量的长期放射性下降物的.
15.
Producing a very great amount of long-lived radioactive fallout. Used of nuclear weapons.
产生大量辐射微尘的产生大量的长期放射性下降物的。用于核武器
16.
The quality of the glyphs rendered from bit-map fonts always drops when they are scaled up, while that from vector fonts does not.
点阵字体符号在放大时质量一定会下降，而向量符号则不会。
17.
Comparative study of relative value of effective decrease and maximal oxygen uptake;
肌氧含量的相对有效下降值与最大摄氧量的对比研究
18.
Medicines(Prices of medicines) have come down a great deal in China.
在中国，药价已大大下降。