Undermined enamel
[医] 无基釉质, 悬空釉质
🧩 词语组成解析
v. 暗地里破坏；挖…的下面（undermine的过去分词）
enamel
[i'næməl]
n. 搪瓷;珐琅;指甲油;
vt. 给…上珐琅;在…涂瓷漆;
🗣️ 情景例句
Will dinner be served on this train?
火车上供饭吗？
He left his home to look for employment.
他离家去找工作。
He never has anything to do.
他从来都是无事可做，