英 [ˈsʌbstəns] 美 [ˈsʌbstəns]
n. 物质，材料；主旨，主要内容；重要性；真实性，可信性；毒品；财富，财产；实质，（实在的）东西；<哲> 实体；可靠，稳定；（哲）实体
[ 复数 substances ][1]
柯林斯英汉双解大词典
substance /ˈsʌbstəns/ CET4 TEM4
1.N-COUNT A substance is a solid, powder, liquid, or gas with particular properties. 物质
2.N-UNCOUNT Substance is the quality of being important or significant. 实质 [正式]
3.N-SING The substance of what someone says or writes is the main thing that they are trying to say. 要旨
4.N-UNCOUNT If you say that something has no substance, you mean that it is not true. 正确性 [正式][1]
in substance 实质上；基本上；事实上
organic substance 有机物；有机物质
active substance 活性物质；放射性物质；有效物质
substance abuse 物质滥用；滥用药物
mineral substance 矿物质
suspended substance 悬浮物