Epsilcapramin
[机] β-氨基己酸
🗣️ 情景例句
But don't give up.
但是千万不要放弃。
Why did't you go home?
为什么你不回家？
When he began to play a tune, we had our first glimpse of the snake.
当他开始吹奏一支曲子时，我们才第一次看到那条蛇。