老师您好，in large quantities 翻译为：大量地，我理解为副词词性。如：

The mother bought toys in large quantities for her boy.

那么，in large quantities 是否有形容词词性，“大量的”意思呢？

回答，不具有形容词词性，如果要转换形容词词性，可以用quantities of 来表达，后面接不可数名词单数

谢谢，盼复！

回答如下：

(1)in great quantities =in great numbers 大量地，相当于“副词”词性，作状语，修饰句子谓语动词。

Radon is known to be harmful to humans in large quantities.  

众所周知，大量的氡会对人体造成伤害。

This medicine is poisonous if taken in large quantities. 

这种药如服过量是会中毒的.

His paper was out in large quantities.  

他的票据大量地流在外面.

Both soybeans and fish meal are high in protein and are available in large quantities.  

因为它们含有高蛋白,而且数量很多.

A big factory manufactures goods in large quantities by using machines.  

大工厂使用机器大量制造商品.

Pickled foods should not be eaten in large quantities. 

腌制食品不宜多吃.

The country imports cotton in large quantities from Australia every year.  

那国家每年从澳大利亚进口大量棉花.

(2)in great quantities =in great numbers 大量地，相当于“副词”词性，作状语，修饰句子谓语动词。

 People had turned up in great numbers.  

来了成批的人.

 Locusts travel together in great numbers, destroying crops by eating every bit of greenery. 

蝗虫成群结队地飞行,见绿叶就吃, 毁掉庄稼.

 In developing countries, people are pouring into overcrowded cities in great numbers.  

在发展中国家, 大量人口涌向了人满为患的城市.

That's why they are not retuning in great numbers.  

这也是为什么他们不大批返乡的原因.

That day we killed and wounded the enemy in great numbers.  

那天我们杀伤了大量的敌人.

 Moreover, the women are taking part in production in great numbers.  

同时, 广大的妇女群众参加了生产工作.

(3)quantities of 大量的+不可数名词单数=a great quantity of +不可数名词单数

They were used to imbibing enormousquantities ofalcohol.  

他们过去习惯于狂饮烈酒。

The Customs have seized large quantities of smuggled heroin.  

海关查获了大量走私的海洛因。

They may have weaponized quantities of anthrax.  

他们可能已将大量炭疽制成了武器。

 Quantities of food were spread out on the table.  

许多食品被摊放在桌子上.

Large quantities of water are needed for cooling purpose.  

冷却要用大量的水.

 Considerable quantities of CO ₂ are adsorbed even by perfectly dry glass powder.  

完全干燥玻璃粉吸附大量的二氧化碳.

The state allotted them large quantities of chemical fertilizer.  

国家给他们调拨了大量化肥.

They ordered quantities of farm implements.  

他们订购了大量农具.

(4)quantities of 大量的+不可数名词单数=a great quantity of +不可数名词单数

Yesterday's typhoon brought a great quantity of rain.  昨天的台风带来了大量的降雨.

 From Tebah and Berothai, towns that belonged to Hadadezer, King David a great quantity of bronze.  

大卫王又从属哈大底谢的比他、和比罗他城中、夺取了许多的铜.

 The stockman is spreading a great quantity of fish food into the fish pond.  

饲养员正在往鱼塘里撒喂大量鱼食.

 Our new factory is turning out a great quantity of high precision instruments.  

我们新建的工厂正在生产大量的精密仪器.

 Storing a large quantity of high grade, with great value for development.  

储存量大,品位较高, 具有较大的开发价值.