Active substrate
[电] 活性物质
🧩 词语组成解析
active
['æktiv]
adj. 积极的，活跃的，有生气的;迅速的，敏捷的;有效的，起作用的;
n. [语法]主动语态;积极分子，活跃的人;
substrate
['sʌbstreit]
n. 底物;底层;基底;基层;
🗣️ 情景例句
in almost a full week.
差不多有一整个星期了。
The stain on the dress isn't really noticeable.
那件衣服上的污渍并不很明显。
After they had entered the house, they went into the dining room.
他们进到屋里后，走进了饭厅。