Bacterial plaque
牙菌斑
🧩 词语组成解析
bacterial
[bæk'tiriəl]
adj. 细菌的;细菌性;
plaque
[plɑ:k]
n. 匾，饰板;胸章，徽章;[医]血小板;
🗣️ 情景例句
About 9:30.
大约九点半。
What is the total circulation of this newspaper.
这家报纸总发行量多少？
I've been here before.
我以前来过这里。