Xoybutyria
羟丁酸尿
🗣️ 情景例句
Don't worry.
别担心。
A little child is the sweetest and purest thing in the world.
幼儿是世界上最可爱和最纯洁的。
A new machine called 'The Revealer' has been invented and it has been used to detect gold which has been buried in the ground.
一种叫“探宝器”的新机器已经发明出来，并被人们用来探测地下埋藏的金子。