cavity
[ˈkʰævɪɾi]
B1 · Intermediate★★★☆☆
Simple Meaning
空洞，固体内部（如牙齿或墙壁）的洞或空腔。
When to Use
💬Daily Conversation⚙️Technical
Intermediate — can handle common situations
Examples in Conversation
“牙医说我有一个小蛀牙需要补。”
“墙里有一个管道穿过的空洞。”
Learning Path
▶Full Definition
A hole or hollow depression.