Ucl
[化] 上控制限
🗣️ 情景例句
He's quiet now.
他现在很安静。
My sweater is blue.
我的毛衣是蓝色的。
It has been found that certain bats emit squeaks and by receiving the echoes,
人们发现，某些蝙蝠能发出尖叫声，