Diatomaceous
a. 硅藻的, 含硅藻的, 硅藻化石遗址构成的
🗣️ 情景例句
I received a letter from my parents this morning.
今天早上我收到父母一封信。
Just a minute, please.
请等一下。
but the paper was wrapped round a drum which rotated slowly.
根但是纸是卷在慢慢旋转的圆筒上的。