Passive substrate
[计] 无源衬底
🧩 词语组成解析
substrate
['sʌbstreit]
n. 底物;底层;基底;基层;
🗣️ 情景例句
It's eleven thirty.
十一 点半。
The mailman is delivering letters.
邮差在发信。
Dad, this bag is too big. We can't carry it.
爸爸，这个包太重了，我搬不动。