例句
A sticky substance had leaked onto the kitchen floor.
一种黏糊糊的物质漏到了厨房地板上。
Factories must prevent harmful substances from entering rivers, as contaminated water threatens both wildlife and human health.
工厂必须防止有害物质进入河流，因为受污染的水会威胁野生动物和人类健康。
常用搭配
- harmful substances｜有害物质
- chemical substance｜化学物质
- the substance of｜……的实质
- lack substance｜缺乏实质内容
用法提示
表示物质种类时可数；表示实质或根据时通常不可数。