Bitartronate
羟丙二酸氢盐
🗣️ 情景例句
Will I have to wait for a long time?
我得等很久吗？
Don't leave before I return.
在我回来之前请不要离开。
Tie a heavy weight at the end of a long piece of string.
把一个重物拴在一根长绳子的一端，