shell
/ʃɛl/
A2 · Elementary★★★☆☆
Simple Meaning
动物（如乌龟或海洋生物）的坚硬外壳。
When to Use
💬Daily Conversation✈️Travel English
Elementary — simple everyday language
Examples in Conversation
“今天早上我们在海滩上收集了漂亮的贝壳。”
“乌龟把头缩回了壳里。”
Learning Path
▶Full Definition
A hard external covering of an animal.