Dental plaque
牙菌斑; 齒斑
?? 詞語組成解析
dental
['dentl]
adj. 牙齒的;牙科的;（輔音）齒音的;
n. 齒音;
plaque
[plɑ:k]
n. 匾，飾板;胸章，徽章;[醫]血小板;
??? 情景例句
Well ...
嗯……
My intentions were good.
我是好意。
I'm sure that you need an X-ray, Andy.
我看你需要做一次X光透視。