residue

'rezidju:

托福GRE Collins 1

n. matter that remains after something has been removed

n. 残渣, 剩余, 余数
[化] 残基; 残渣; 残液; 釜液

Collins 星级

5,740

BNC 频率

7,576

使用频率

residue 由前缀 re-（表示“再，反复”）和词根 sidue（源自拉丁语 sedere，意为“坐”）组成，整体意思可以理解为“留下来的东西”或“剩余物”。

例句

1. The scientist found a residue of chemicals in the water sample.

科学家在水样中发现了化学物质的残留物。

2. After cooking, there was a residue of oil left in the pan.

烹饪后，锅里留有油的残留物。

3. The dentist removed all the residue from my teeth to ensure they were clean.

牙医清除了我牙齿上的所有残留物，以确保它们干净。