Deca
n. 十（词头）
🗣️ 情景例句
Are you good at it?
你很擅长吗？
It's just a mosquito bite.There's nothing to worry about.
只是一只蚊子咬的伤口， 不要担心。
Both girls write to each other regularly now.
现在这两位姑娘定期通信了。