Cer
n. 陶瓷
🗣️ 情景例句
Five.
5号。
You are brighter than I am.
你比我聪明。
This echo-location in bats is often compared with radar, the principle of which is similar.
蝙蝠这种回声定位常常可与雷达相比较，其原理是相似的。